#include <bits/stdc++.h>
using namespace std;
int h,m,s,k,sum,a,b,c;
int main()
{
    cin>>h;
    cin>>m;
    cin>>s;
    cin>>k;
    sum=h*3600+m*60*s+k;
    a=(k/3660+h)%24;
    b=(k/60+m)%60;
    c=(k+s)%60;
    cout<<a<<b<<c;
    return 0;
}