diff --git a/proglabs/lab6/1.c b/proglabs/lab6/1.c
deleted file mode 100644
index 53c5fdf..0000000
--- a/proglabs/lab6/1.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <stdio.h>
diff --git a/proglabs/lab6/10.c b/proglabs/lab6/10.c
new file mode 100644
index 0000000..b62b845
--- /dev/null
+++ b/proglabs/lab6/10.c
@@ -0,0 +1,42 @@
+#include <stdio.h>
+
+#define n1 0.15 //tax1
+#define n2 0.28
+
+#define m1 17850
+#define m2 23900
+#define m3 29750
+#define m4 14875
+
+
+int main() {
+    int m,sw,swt,exit;
+    float d,tax;
+    exit = swt = 1;
+    while(exit){
+        do{
+                printf("Choose tarif:\n");
+                printf("1) odin\t2) main\n");
+                printf("3) brak sov\t4) Brak razd\n");
+                printf("5) exit\nInput: ");
+                sw = getchar();
+                switch(sw){
+                    case '1': m = m1; swt = 0; break;
+                    case '2': m = m2; swt = 0; break;
+                    case '3': m = m3; swt = 0; break;
+                    case '4': m = m4; swt = 0; break;
+                    case '5': exit = 0; break;
+                }
+            }while(swt&&exit);
+        if(exit){
+            printf("dohod: ");
+            scanf("%f",&d);
+            while(getchar() != '\n');
+        
+            if (d>m){tax = ((m*n1)+((d-m)*n2));}
+            else (tax = (d*n1));
+
+            printf("Tax: %.2f\n\n\n",tax);
+        }}
+  return 0;
+}
diff --git a/proglabs/lab6/11.c b/proglabs/lab6/11.c
new file mode 100644
index 0000000..983747e
--- /dev/null
+++ b/proglabs/lab6/11.c
@@ -0,0 +1,60 @@
+#include <stdio.h>
+
+#define arti 2.05
+#define svek 1.15
+#define carr 1.09
+
+#define skid 0.05
+
+#define zatrporog1 5
+#define zatrporog2 20
+#define zatrmin 6.50
+#define zatrsr 14.00
+#define zatrmax 0.5
+
+int main() {
+    int ch,a,s,c,tmp;
+    float sk,st,zt;
+    
+    printf("a - Artishok\nb - Svek\nc -Carrot\nq - quit\nInput: ");
+    while((ch = getchar())!='q'){
+        switch(ch){
+            case 'a':
+                printf("Arti: ");
+                scanf("%d",&tmp);
+                a+=tmp;
+                break;
+            case 'b': 
+                printf("svek: ");
+                scanf("%d",&tmp);
+                s+=tmp;
+                break;
+            case 'c':
+                printf("Carrot: ");
+                scanf("%d",&tmp);
+                c+=tmp;
+                break;
+        }
+    printf("\n\nzakaz:\nArti\tSvek\tCarrot\n%d\t%d\t%d\n",a,s,c);
+    printf("a - Artishok\nb - Svek\nc - Carrot\nq - deal\nInput: ");
+    }
+
+    if((a>0)||(s>0)||(c>0)){
+        
+        st = ((a*arti)+(s*svek)+(c*carr));
+        tmp = (a+s+c);
+        if(tmp>zatrporog1){
+            if(tmp>zatrporog2){
+            zt=(zatrsr+((tmp-zatrporog2)*zatrmax));
+            }else(zt=zatrsr);
+        }else(zt=zatrmin);
+        if(st>100){sk=(st+zt)*skid;}
+
+        printf("zakaz: arti-%d Svek-%d Carr-%d\n",a,s,c);
+        printf("Arti-%d sum-%0.2f stoimost-%0.2f/1\n",a,a*arti,arti);
+        printf("Svek-%d sum-%0.2f stoimost-%0.2f/1\n",s,s*svek,svek);
+        printf("Carrot-%d sum-%0.2f stoimost-%0.2f/1\n",c,c*carr,carr);
+        printf("stoimost-%.2f skidka-%.2f zatrat-%.2f\nitogo: %.2f",st,sk,zt,zt+st-sk);
+            }
+    return 0;
+}
diff --git a/proglabs/lab6/2.c b/proglabs/lab6/2.c
index 53c5fdf..0db65be 100644
--- a/proglabs/lab6/2.c
+++ b/proglabs/lab6/2.c
@@ -1 +1,28 @@
 #include <stdio.h>
+
+int main(){
+    int ch,c,m[8];
+    ch = c = 0;
+    printf("ascii symb - its num until #\n");
+    while((ch = getchar()) != '#'){
+        m[c] = ch;
+        c++;
+        if(c == 8){
+            for(c = 0; c < 8; c++){
+                switch(m[c]){
+                    case '\n':
+                    printf("\\n - %d ",m[c]);
+                    break;
+                    case ' ':
+                    printf("\"%c\" - %d ",m[c],m[c]);
+                    break;
+                    default:
+                    printf("%c - %d ",m[c],m[c]);
+                }
+            }
+            printf("\n");
+            c = 0;  
+        }
+    }
+    return 0;
+}
diff --git a/proglabs/lab6/3.c b/proglabs/lab6/3.c
index 53c5fdf..4bed706 100644
--- a/proglabs/lab6/3.c
+++ b/proglabs/lab6/3.c
@@ -1 +1,16 @@
 #include <stdio.h>
+
+int main(){
+    int a,n1,sum1,n2,sum2;
+    n1 = sum1 = n2 = sum2 = 0;
+    printf("num: ");
+    a = 1;
+    while(scanf("%d", &a) && a != 0){
+        if (a % 2 == 0){n1++; sum1 += a;}
+        else if (a % 2 == 1 || a % 2 == -1){n2++; sum2 += a;}
+        printf("num: ");
+    }
+    printf("eve nums: %d \t eve summ: %d \t mean: %d\n",n1,sum1,(sum1/n1));
+    printf("odd nums: %d \t odd summ: %d \t mean: %d",n2,sum2,(sum2/n2));
+    return 0;
+}
diff --git a/proglabs/lab6/4.c b/proglabs/lab6/4.c
new file mode 100644
index 0000000..0516d6d
--- /dev/null
+++ b/proglabs/lab6/4.c
@@ -0,0 +1,14 @@
+#include <stdio.h>
+
+int main() {
+    int ch,r;
+    r = 0;
+    printf("Print something:\n");
+    while((ch = getchar()) != '#'){
+        if(ch == '!'){r++;putchar('!');putchar('!');}  
+        else if(ch == '.'){r++;putchar('!');}
+        else putchar(ch);
+    }
+    printf("\nr: %d",r);
+    return 0;
+}
diff --git a/proglabs/lab6/5.c b/proglabs/lab6/5.c
new file mode 100644
index 0000000..790e2fd
--- /dev/null
+++ b/proglabs/lab6/5.c
@@ -0,0 +1,16 @@
+#include <stdio.h>
+
+int main() {
+    int ch,r;
+    r = 0;
+    printf("Print something:\n");
+    while((ch = getchar()) != '#'){
+        switch(ch){
+        case '!': r++;putchar('!');putchar('!');break;  
+        case '.': r++;putchar('!');break;
+        default : putchar(ch);
+        }
+    }
+    printf("\nr: %d",r);
+    return 0;
+}
diff --git a/proglabs/lab6/6.c b/proglabs/lab6/6.c
new file mode 100644
index 0000000..ecd87a0
--- /dev/null
+++ b/proglabs/lab6/6.c
@@ -0,0 +1,13 @@
+#include <stdio.h>
+
+int main() {
+    int a,b,c;
+    a = b = c = 0;
+    printf("count ef:\n");
+    while((a = getchar()) != '#'){
+        if(a == 'i' && b == 'e'){c++;}
+        b = a;
+    }
+    printf("count: %d",c);
+    return 0;
+}
diff --git a/proglabs/lab6/7.c b/proglabs/lab6/7.c
new file mode 100644
index 0000000..92f77ed
--- /dev/null
+++ b/proglabs/lab6/7.c
@@ -0,0 +1,29 @@
+#include <stdio.h>
+#define t 10 //zp
+#define s 40 //sverh
+#define u 1.5 //sverh*
+#define n1 0.15 //tax1
+#define n2 0.2
+#define n3 0.25
+#define m1 300 //maxbeftax2
+#define m2 150
+
+
+int main() {
+    int h,tax,a;
+    printf("hours: ");
+    scanf("%d",&h);
+
+    if (h>s){tax = a = (s*t + ((h-s) * (t*u)));}
+    else(tax = a = h*t);  
+
+    if (tax>m1)
+    {
+        if(tax>m2){tax = (m1*n1) + (m2*n2) + ((tax-m1-m2)*n3);}
+        else(tax = (m1*n1) + ((tax-m1)*n2));
+    }
+    else (tax*=n1);
+
+    printf("Acc: %d\nTax: %d\nReceived: %d",a,tax,a-tax);
+    return 0;
+}
diff --git a/proglabs/lab6/8.c b/proglabs/lab6/8.c
new file mode 100644
index 0000000..a427e0a
--- /dev/null
+++ b/proglabs/lab6/8.c
@@ -0,0 +1,52 @@
+#include <stdio.h>
+#define t1 8.75
+#define t2 9.33
+#define t3 10.00
+#define t4 11.20
+// #define t 10 //zp
+#define s 40 //sverh
+#define u 1.5 //sverh*
+#define n1 0.15 //tax1
+#define n2 0.2
+#define n3 0.25
+#define m1 300 //maxbeftax2
+#define m2 150
+
+int main() {
+    int h,sw,x,swt,exit,scan;
+    float t,tax,a;
+    exit = x = swt = scan = 1;
+    while(exit){
+        printf("hours: ");
+        scanf("%d", &h);
+        while (getchar() != '\n');
+        do{
+                printf("Choose tarif:\n");
+                printf("1) $%.2f/h\t2) $%.2f/h\n",t1,t2);
+                printf("3) $%.2f/h\t4) $%.2f/h\n",t3,t4);
+                printf("5) exit\nInput: ");
+                sw = getchar();
+                switch(sw){
+                    case '1': t = t1; swt = 0; break;
+                    case '2': t = t2; swt = 0; break;
+                    case '3': t = t3; swt = 0; break;
+                    case '4': t = t4; swt = 0; break;
+                    case '5': exit = 0; break;
+                }
+            }while(swt&&exit);
+
+        if(!swt && exit){
+            if (h>s){tax = a = (s*t + ((h-s) * (t*u)));}
+            else(tax = a = h*t);  
+
+            if (tax>m1)
+            {
+                if(tax>m2){tax = (m1*n1) + (m2*n2) + ((tax-m1-m2)*n3);}
+                else(tax = (m1*n1) + ((tax-m1)*n2));
+            }
+            else (tax*=n1);
+            printf("Acc: %.3f\nTax: %.3f\nReceived: %.3f\n",a,tax,a-tax);
+        }} 
+
+  return 0;
+}
diff --git a/proglabs/lab6/9.c b/proglabs/lab6/9.c
new file mode 100644
index 0000000..5afb800
--- /dev/null
+++ b/proglabs/lab6/9.c
@@ -0,0 +1,26 @@
+#include <stdio.h>
+int pr(long long n);
+
+int main() {
+    long long int x,i;
+    int y = 1;
+    if(!(scanf("%lld",&x)))return 1;
+
+    for(i = x; i > 1; --i)
+        if(pr(i))
+            printf("%lld\t",i);
+
+    return 0;
+}
+
+int pr(long long x) {
+    if (x < 2) return 0;
+    if (x == 2 || x == 3) return 1;
+    if (x % 2 == 0 || x % 3 == 0) return 0;
+
+    for (long long i = 5; i * i <= x; i += 6) {
+        if (x % i == 0 || x % (i + 2) == 0)
+            return 0;
+    }
+    return 1;
+}
diff --git a/proglabs/lab6/tmp.out b/proglabs/lab6/tmp.out
new file mode 100755
index 0000000..7d59dd1
Binary files /dev/null and b/proglabs/lab6/tmp.out differ