Changes to be committed:

modified:   proglabs/lab5/1.c
	new file:   proglabs/lab5/10.c
	new file:   proglabs/lab5/11.c
	new file:   proglabs/lab5/12.c
	new file:   proglabs/lab5/13.c
	new file:   proglabs/lab5/14.c
	modified:   proglabs/lab5/2.c
	new file:   proglabs/lab5/3-1.c
	new file:   proglabs/lab5/3-2.c
	deleted:    proglabs/lab5/3.c
	new file:   proglabs/lab5/4.c
	new file:   proglabs/lab5/5.c
	new file:   proglabs/lab5/6.c
	new file:   proglabs/lab5/7.c
	new file:   proglabs/lab5/8.c
	new file:   proglabs/lab5/9.c
	new file:   proglabs/lab5/tmp.out

proglabs/lab5/8.c

@@ -0,0 +1,13 @@
+#include <stdio.h>
+
+int main(){
+    float a,b;
+    int s;
+    printf("a b: ");
+    s = scanf("%f %f", &a, &b);
+    while (s == 2){
+        printf("%.3f / %.3f = %.3f\na b: ",a-b,a+b,((a-b)/(a+b)));
+        s = scanf("%f %f", &a, &b);
+    }
+    return 0;
+}