#include <iostream>
using namespace std;
int main() {
// your code goes here
int n;
scanf("%d",&n);
while(n--)
{
int h,m;
scanf("%d:%d",&h,&m);
// printf("%d %d\n",h,m);
int u1=0,u=0,l=11;
u1 = 23-h;
if(m==0)u1++;
// printf("u1 %d\n",u1);
for(int i=0;i<(u1==24?23:u1);i++)
{
// printf("u %d l %d\n",u,l);
u+=l;
l--;
if(l==0)l=12;
}
// printf("u %d\n",u);
u += 23-h;
if(m<=30)u++;
printf("%d\n",u);
}
return 0;
}
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