#include<stdio.h>
int main()
{
    int h1,m1,h2,m2,q,k,comp,ans,x1,x2;
    scanf("%d",&q);
    for(int i=0;i<q;i++)
    {
        scanf("%d %d %d %d",&h1,&m1,&h2,&m2);
        scanf("%d",&k);
        x1=m1+h1*60;
        comp=x1+k*60;
        x2=m2+h2*60;
        ans=comp-x2;
        printf("%d\n",ans);

    }           
}