#include<iostream> #include<cstring> using namespace std; int main(){ string s; getline(cin,s); for(int i=0;i<s.size();i++){ if(s[i]>='a'&&s[i]<='z'){ s[i]=s[i]-32;//大写转大写 } else{ s[i]=s[i]+32;//小写转大写 } } cout<<s<<endl; char t; for(int i=0;i<s.size()/2;i++){ t=s[i]; s[i]=s[s.size()-1-i]; s[s.size()-1-i]=t; } cout<<s<<endl; for(int i=0;i<s.size();i++){ if(s[i]>='a'&&s[i]<='z'){ s[i]=(s[i]+3-'a')%26+'a'; } else{ s[i]=(s[i]+3-'A')%26+'A'; } } cout<<s<<endl; return 0; }