#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cmath>
#include <map>
#include <vector>
#include <queue>
#include <algorithm>

using namespace std;

//typedef pair<int,int> P;



int main(){
	int a;

	int h = 10;
	int m = 0;

	scanf("%d", &a);

	h += a/100;
	m += (a%100)*60/100;

	printf("%2d:%02d\n", h, m);


	return 0;
}