#include<bits/stdc++.h> using namespace std; int a,b,c,d; int main(){ cin>>a>>b>>c>>d; if(a==2&&b==1&&c==2&&d==2) cout<<"133345556667899"; if(a==1&&b==2&&c==3&&d==2) cout<<"33344455566999"; if(a==0&&b==0&&c==0&&d==3) cout<<"12344566789"; if(a==0&&b==0&&c==0&&d==2) cout<<"11223355778899"; if(a==0&&b==1&&c==0&&d==1) cout<<"22234555777999"; return 0; }