#include <iostream>
using namespace std;
int main() {
string userstring;
getline(cin, userstring);
for(int i=0;i<userstring[i] != '\0';i++)
{
char c='a'- (userstring[i]-'1');
cout<<c;
}
//int j=1;//
//for(int i=0;i<n;i++)//
//{//
// int sum=a[i]+a[j];
//if(sum<=26)
//{
// cout<<
// }
//}
}
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