#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ char a[50],n; cin>>a; n=strlen(a); for(int i=0;a[i]!='\0';i++){ if(a[i]>='a'&&a[i]<='z'){ if(a[i]+3>'z') a[i]=a[i]+3-26; else a[i]=a[i]+3-32; } else{ if(a[i]+3>'Z') a[i]=a[i]+3-26; else a[i]=a[i]+3+32; } } for(int i=n-1;i>=0;i--){ if(a[i]=='a') cout<<'A'; if(a[i]=='A') cout<<'a'; if(a[i]=='b') cout<<'B'; if(a[i]=='B') cout<<'b'; cout<<a[i]; } return 0; }