#include<bits/stdc++.h> using namespace std; int main(){ int n,a,b,c,d,e,f,j1,j2,j3,j4,j5,j6; cin>>n; a=n/100000; b=n/10000%10; c=n/1000%10; d=n/100%10; e=n/10%10; f=n%10; j1=a+65; j2=b; if(j2%2==0)j2/=2; j3=(a+b+c)%10; j4=d; j5=('l'+'e'+e)/10%10; j6=(a+b+c+d+e+f)%10; cout<<char(j1)<<j2<<j3<<j4<<j5<<j6<<endl; return 0; }