#define _USE_MATH_DEFINES #include <cmath> #include <cstdio> #include <vector> #include <iostream> #include <algorithm> #include <string> #include<math.h> #include<iomanip> #include<stdio.h> #include <stdlib.h> #include<stdio.h> #include <queue> #include<map> #include <fstream> #include <sstream> #include<set> #include<stack> #include<time.h> #include <sys/types.h> #include <tuple> #include <numeric> typedef long long int ll; //#include<bits/stdc++.h> using namespace std; int main() { int Q; Q = 1; //cin >> Q; while (Q--) { int a; cin >> a; int t = a / 100; t += 10; t %= 24; int m = (a % 100) * 60 / 100; cout << t << ":"; if (m < 10)cout << 0; cout<< m; } return 0; }