#include <bits/stdc++.h>

using namespace std;

int main()
{
    int i,q,h1[1000],m1[1000],h2[1000],m2[1000],k[1000];
    cin>>q;
    for(i=0;i<q;i++)
    {cin>>h1[i]>>m1[i]>>h2[i]>>m2[i];
     cin>>k[i];
    }
    
    for(i=0;i<q;i++)
    {
        if(m1[i]==0)
            m1[i]+=60;
        if(m2[i]==0)
            m2[i]+=60;
    }
    
    for(i=0;i<q;i++)
    {int c1=0,c2=0,c3=0;
        c1+=(((h1[i]+k[i])-h2[i])*60);
        
     {
         c2=abs(m2[i]-m1[i]);
     }   
     if(m1[i]==60)
         m1[i]=0;
     if(m2[i]==60)
         m2[i]=0;
     if(m1[i]==0)
         c3=c2;
    else if(m1[i]>m2[i]) 
     c3=c1+c2;
     else if(m1[i]<m2[i])
         c3=c1-c2;
       cout<<c3<<endl;
    }
    
    
}