func_code_string: #include <bits/stdc++.h>   int gcd(int a, int b) { return b ? gcd(b, a % b) : a; }   int main() {     int la, ra, ta, lb, rb, tb;     scanf( %d%d%d , &la, &ra, &ta), ++ra;     scanf( %d%d%d , &lb, &rb, &tb), ++rb;     int g = gcd(ta, tb);     ra -= la / g * g, la %= g;     rb -= lb / g * g, lb %= g;     if (lb > la) lb -= g, rb -= g;     int ans = 0;     ans = std::max(ans, std::min(ra, rb) - std::max(la, lb));     lb += g, rb += g;     ans = std::max(ans, std::min(ra, rb) - std::max(la, lb));     printf( %d n , ans);     return 0;   }   