#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 n,m,s=0; cin>>n>>m; for(int i=n;i<=m;i++){ int t=i; while(t>=1){ if(t%10==4||t%100==62){ s++; break; } t/=10; } } cout<<m-n+1-s<<endl; */ int p,e,i,d; cin>>p>>e>>i>>d; for(int a=p;a<=21252;a+=23){ for(int b=e;b<=21252;b+=28){ for(int c=i;c<=21252;c+=33){ if(a==b&&b==c){ cout<<"the next triple peak occurs in "<<a-d<<" days.";return 0; } } } } return 0; }