#include<iostream> using namespace std; int main() { /** char a; cin>>a; if(a =='Y'){ cout<<'A'; }else { if(a =='Z'){ cout<<'B'; }else{ cout<<char(a+2); } } **/ char ch; scanf("%c",&ch); if(isupper(ch)){ printf("%c\n",tolower(ch)); }else{ printf("%c\n",tolower(ch)); } return 0; }