```cpp
program a1;
var
a,b,c,d,i,j,k,n,m:longint;
begin
readln(a,b,c,d);
n:=c-a;
m:=d-b;
if m<0 then begin n:=n-1; m:=m+60;
end;
writeln(n,' ',m);
end.
```
by MACA @ 2016-11-25 20:53:10
```cpp
#include<iostream>
using namespace std;
int main()
{
int a,b,c,d,k,m;
cin>>a>>b>>c>>d;
k=c-a-1;
d=d;
m=60-b;
if((m+d)>60)
{
k++;
m=m-60;
}
cout<<k<<" "<<m+d;
return 0;
}
```
by 这我也是醉了 @ 2016-12-08 17:27:56