#include<iostream> #include<cstdio> using namespace std; int main(){ int a,b,c,d,e,f; char g; cin>>a; cin>>b; cin>>c; cin>>d; cin>>e; cin>>f; f=(a+b+c+d+e+f)%10; c=(a+b+c)%10; g=char(a+65); if(b%2==0){ b=b/2; } e=((107+102+e)/10)%10; cout<<g<<b<<c<<d<<e<<f; return 0; }