#include<bits/stdc++.h> using namespace std; int main(){ char e,f; int h,m,s,a,b,c,x,y,z,n; cin>>h>>e>>m>>f>>s; cin>>a>>e>>b>>f>>c; x=(h-a)*3600; y=(m-b)*60; z=s-c; cout<<x+y+z; return 0; } /************************************************************** Problem: 1101 User: wtq001 Language: C++ Result: Accepted Time:24 ms Memory:2072 kb ****************************************************************/