#include <iostream> #include <cmath> #include <cstring> using namespace std; int main() { char a[51]; cin>>a; int len=strlen(a); for(int i=0;i<len;i++) { a[i]=a[i]-3; if(a[i]>'Z'&&a[i]<'a' || a[i]>'z') a[i]=a[i]-26; } for(int i=0;i<len;i++) { if(a[i]>='a' && a[i]<='z') a[i]=a[i]-32; else if(a[i]>='A' && a[i]<='Z') a[i]=a[i]+32; } for(int i=len-1;i>=0;i--) { cout<<a[i]; } return 0; }