uva 11650

#include<stdio.h>
int main()
{
    int n,i,hh,mm;
    while(scanf("%d",&n)==1)
    {
        for(i=1;i<=n;i++)
        {
            scanf("%d:%d",&hh,&mm);
            hh= 11-hh + (mm == 0);
        if(hh <= 0)   hh=hh+12;
        if(mm!= 0)
         mm= 60-mm;
        printf("%02d:%02d\n",hh,mm);


        }
    }
}