# include<iostream> using namespace std; int main(){ long long p,e,l,d; cin>>p>>e>>l>>d; for(int i=0;i<924;i++){ for(int j=0;j<759;j++){ for(int k=0;k<644;k++){ if(((p+i*23)==(e+j*28))&&((p+i*23)==(l+k*33))){ cout<<"the next triple peak occurs in "<<p+i*23-d<<" days."; } } } } return 0; }