#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int p,e,i,d,x,y,z; cin>>p>>e>>i>>d; for(int x=p+23;x<=21252;x+=23){ for(int y=e+28;e<=21252;e+=28){ for(int z=i+33;z<=21252;z+=33){ if(x==y && x==z && y==z){ cout<<"the next triple peak occurs in "<<x-d<<"days."; } } } } return 0; }