#include<cstdio>
#include<string>
using namespace std ;
int main() {
char arr[100];
fgets(arr, 100, stdin);
string str = arr ;
for (unsigned i = 0 ; i < str.size() ; ++ i ) {
if (str[i] >= 'a' && str[i] < 'z'
|| str[i] > 'A' && str[i] < 'Z') {
str[i] = str[i] + 1;
} else if (str[i] == 'z' ) {
str[i] = 'a';
} else if ( str[i] == 'Z') {
str[i] = 'A';
} else {
str[i] = str[i];
}
}
printf("%s", str.c_str());
}



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