#include <bits/stdc++.h>
#define ll long long
using namespace std ;
int main(){
string s ;
while ( cin >> s ) {
int times = s.length() ;
for ( int i = 0 ; i < times ; i++ )
{
if ( s[i] >= 'A' and s[i] <= 'Z' )
{
if ( s[i]-'A'+times <= 25 )
{
s[i] = ( s[i] + times ) ;
}
else
{
s[i] = 'Z' ;
}
}
else if ( s[i] >= 'a' and s[i] <= 'z' )
{
if ( s[i]-'a'+times <= 25 )
{
s[i] = ( s[i] + times ) ;
}
else
{
s[i] = 'z' ;
}
}
}
cout << s << " " ;
}
return 0 ;
}
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