hello everyone, a little help with what exactly does this "for"?
for (int i=1; i <=sets; i++) {
printf("%d\n", i);
scanf("%d.%d.%d.%d", &a, &b, &c, &d);
MSK_1 = (a << 24)+(b << 16)+(c << 8)+d;
scanf("%u", &MSK_2);
scanf("%d.%d.%d.%d", &a, &b, &c, &d);
IP_1 = (a << 24)+(b << 16)+(c << 8)+d;
scanf("%d.%d.%d.%d", &a, &b, &c, &d);
IP_2 = (a << 24)+(b << 16)+(c << 8)+d;