#include<cstdio>
#include<cstring>
#include<cctype>
#include<iostream>

using namespace std;
int main(void)
{
	while(1)
	{
		char a[10000] = {0};
		if(gets(a) == NULL) break;
		int as = strlen(a);
		for(int i = 0;i < 26;i++)
		{
			if(strstr(a,"this") || strstr(a,"that") || strstr(a,"the")) break;
			for(int j = 0;j < as;j++)
			{
				if(isalpha(a[j]) != 0)
				{
					if(a[j] < 'z')
					{
						a[j]++;
					}
					else
					{
						a[j] = 'a';
					}
				}
			}
		}
		printf("%s\n",a);
	}
	return 0;
}