#include<bits/stdc++.h> using namespace std; int main(){ int p,e,i,d; cin>>p>>e>>i>>d; for(int t=1;t<=924;t++){ for(int q=1;q<=759;q++){ for(int z=1;z<=644;z++){ if(((p+t*23)==(e+q*28))&&((p+t*23)==(i+z*33))){ cout<<"the next triple peak occurs in "<<p+t*23-d<<" days."; } } } } return 0; }