#include <bits/stdc++.h>
using namespace std;
int main()
{
int tc, hour, mint;
cin>>tc;
while(tc--)
{
scanf("%d:%d", &hour, &mint);
hour= 11-hour + (mint == 0);
if(hour <= 0)
hour=hour+12;
if(mint != 0)
mint = 60-mint;
printf("%02d:%02d\n",hour,mint);
}
return 0;
}
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