int main() { int i = 0, j = 0, n; char ch1, ch2; int a[15] = { 0 }, b[15] = { 0 }, c[15] = { 0 }; while ((ch1 = getchar()) != '\n') { a[i] = ch1 - '0'; i++; } while ((ch2 = getchar()) != '\n') { b[j] = ch2 - '0'; j++; } f...