#include<iostream>
#include<string.h>
#include<stdio.h>

int main(){
	char s[100];

	int count = 0;

	gets(s);

	int diff;
	int flag = false;
	//一番最初に｛the,that,this｝がある場合
	diff = s[0] - 't';
	if ((s[1] - diff) == 'h'){
		//printf("%c\n", s[j+1] - diff);
		if ((s[2] - diff) == 'e'){
			//printf("%c\n", s[j + 2] - diff);
			if (s[3] == ' '){
				flag = true;
			}
		}
		else if ((s[2] - diff) == 'a'){
			//printf("%c\n", s[j + 2] - diff);
			if ((s[3] - diff) == 't'){
				//printf("%c\n", s[j + 3] - diff);
				if (s[4] == ' '){
					flag = true;
				}
			}
		}
		else if ((s[2] - diff) == 'i'){
			//printf("%c\n", s[j + 2] - diff);
			if ((s[3] - diff) == 's'){
				//printf("%c\n", s[j + 3] - diff);
				if (s[4] == ' '){
					flag = true;
				}
			}
		}
	}
	
	if (!flag){
		//一番以降に｛the,that,this｝がある場合
		for (int j = 1; j < strlen(s); j++){
			if ((s[j]) == ' '){
				diff = s[j + 1] - 't';
				if ((s[j + 1] - diff) == 't'){
					//printf("diff:%d\n", diff);
					if ((s[j + 2] - diff) == 'h'){
						//printf("%c\n", s[j+1] - diff);
						if ((s[j + 3] - diff) == 'e'){
							//printf("%c\n", s[j + 2] - diff);
							if (s[j + 4] == ' '){
								break;
							}
						}
						else if ((s[j + 3] - diff) == 'a'){
							//printf("%c\n", s[j + 2] - diff);
							if ((s[j + 4] - diff) == 't'){
								//printf("%c\n", s[j + 3] - diff);
								if (s[j + 5] == ' '){
									break;
								}
							}
						}
						else if ((s[j + 3] - diff) == 'i'){
							//printf("%c\n", s[j + 2] - diff);
							if ((s[j + 4] - diff) == 's'){
								//printf("%c\n", s[j + 3] - diff);
								if (s[j + 5] == ' '){
									break;
								}
							}
						}

					}
				}
			}
		}
	}
	//printf("diff:%d\n",diff);
	for (int i = 0;i < strlen(s);i++){
		if (s[i] == ' ' || s[i] == '.')continue;
		s[i] -= diff;
	}

	printf("%s",s);

	return 0;
}