#include<bits/stdc++.h> using namespace std; int main(){ int s,a,b,c,d,e,f; cin>>s; a=s/100000; b=s%100000/10000; c=s%10000/1000; d=s%1000/100; e=s%100/10; f=s%10; cout<<char(a+'A'); if(b%2==0) cout<<b/2; else cout<<b; cout<<a+b+c<<d<<(e+209)/10%10<<(a+b+c+d+e+f)%10; return 0; }