func_code_string: #include <bits/stdc++.h>   using namespace std;   const long long int INF = 1e18;   const int inf = 1e9;   const int MOD = 1e9 + 7;   const int nax = 1000000 + 10;   int main() {     ios_base::sync_with_stdio(false);     cin.tie(0);     int n, s;     cin >> n >> s;     int a, b, c, d;     cin >> a >> b;     if (a * 60 + b >= s + 1) {       cout << 0 <<     << 0;       return 0;     }     for (int i = 1; i < n; i++) {       cin >> c >> d;       if (a == c) {         int m = d - b;         if (m >= 2 * s + 2) {           int k = b + s + 1;           int j = k / 60;           int f = k % 60;           cout << a + j <<     << f;           return 0;         }       } else {         int m = c - a - 1;         m *= 60;         m += 60 - b;         m += d;         if (m >= 2 * s + 2) {           int k = b + s + 1;           int j = k / 60;           int f = k % 60;           cout << a + j <<     << f;           return 0;         }       }       a = c, b = d;     }     int k = b + s + 1;     int j = k / 60;     int f = k % 60;     cout << a + j <<     << f;     return 0;   }   