#include #include <bits/stdc++.h> using namespace std; const int N=1e7+10; const int INF=0x3f3f3f3f; int main() { int t,shi,fen; double l,s,zzt; cin>>t>>l>>s; fen=t%100; shi=t/100; zzt=l/s*60; while(zzt>=60) { zzt-=60; shi+=1; if(shi>=24) { shi=0; } } fen+=zzt; if(fen>=60) { shi+=(fen/60); fen-=(fen/60)*60; } if(shi>=24) { shi=0; shi+=(fen/60); } cout<<shi<<"-"<<fen; }