> #include <iostream>
> #include <iomanip>
> #include <cmath>
> #include <string>
> using namespace std;
> 
> string input;
> int  main()
> {
>     while(cin >> input &&  input !=  "ENDOFINPUT")
> 	{
> 		getline(cin, input);
> 		int i, k;
> 		for(i =  0; i < input.length(); i ++)
> 		{
> 			if(input[i] >= 'A' && input[i] <= 'Z')
> 			{
>                  k = input[i] - 'A';
> 				 k = ((k - 5) + 26)%26;
> 				 input[i] = 'A' + k;
> 			}
> 		}
> 		cout << input << endl;
>         cin >> input;
> 	}  
> 	return 0;   
> }
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