#include <bits/stdc++.h>
using namespace std;

int main()
{
    int n;
    cin>>n;
    while(n--){
        int h,m;
        scanf("%d:%d",&h,&m);
        h+=13;
        m+=15;
        h+=m/60;
        m%=60;
        h%=24;
        printf("%d:%d\n",h,m);
    }
    return 0;
}