#include <iostream>
#include <string>
using namespace std;
int main() {
   // your code goes here
   string str1="Hello There!";
   int i,n;
 cout<<"원래 문장: ";
 cout<<str1<<endl;
 n = str1.length();
 for (i=0;i<n;i++) {
    str1[i]=str1[i]^170; } cout<<"암호화된 문장: ";
    cout<<str1<<endl;
 for (i=0;i<n;i++) { 
    str1[i]=str1[i]^170; }
 cout<<"암호 풀린 문장: ";
 cout<<str1<<endl;
 return 0; }