#include <iostream>
using namespace std;
void main()
{
int res=0,res1=0,res2=0,res3=0;
char ch,ch1,ch2,ch3;
cout<<"Dai"<<endl;
cin>>ch>>ch1>>ch2>>ch3;
res= ch +1;
res1= ch1 +2;
res2= ch2 + 3;
res3= ch3 + 4;
cout<< (char)res << (char)res1 << (char)res2<< (char)res3<<endl;
}