#include "iostream"
#include "string.h"
using namespace std;

int main()
{

    char input[100];
    char exit[100]="`";
    while(1)
    {
        cin.get(input,99);
        int i=0,b=99;
        if(strcmp(input,exit)==0) return 0;
        while(i<b)
        {
            if(input[i]!='\0')
            {
                i++;
            }
            else
            {
                b=-1;
                continue;
            }
        }
        char *output;
        output = new char [i];
        for(int j=0;j<i;j++)
        {
            output[j]=input[j]-7;
        }
        for(int j=0;j<i;j++)
        {
            cout<<output[j];
        }
        cout<<"\n\n";
        cin.get();
    }
    return 0;


}