Go: package main

import (
	"bufio"
	"fmt"
	"os"
	"strings"
)

var scanner = bufio.NewScanner(os.Stdin)

func main() {
	for scanner.Scan() {
		var result string
		line := scanner.Text()
		key := make(map[string]string)

		var i int32
		for ; i < 52; i++ {
			makeKey(key, i)
			result = decode(key, line)

			if strings.Contains(result, "the") {
				break
			} else if strings.Contains(result, "this") {
				break
			} else if strings.Contains(result, "that") {
				break
			}
		}

		fmt.Println(result)
	}
}

func makeKey(key map[string]string, shift int32) {
	for i := 'a'; i <= 'z'; i++ {
		cipher := (i + shift)
		if cipher > 'z' {
			cipher = cipher%'z' + 'a' - 1
		} else if cipher < 'a' {
			cipher = cipher + ('z' - 'a') + 1
		}
		key[string(i)] = string(cipher)
	}
}

func decode(key map[string]string, cipher string) string {
	var result string
	for _, v := range cipher {
		if key[string(v)] != "" {
			result += key[string(v)]
		} else {
			result += string(v)
		}
	}
	return result
}

Python: import string
import sys


def check_exists(word_set, rotate_dict, search):
    for word in word_set:
        rotated_word = ''.join(rotate_dict[s] for s in word)
        if rotated_word == search:
            return True
    return False


for line in sys.stdin:
    alphabets = string.ascii_lowercase
    frequency = [t[1] for t in sorted([(line.count(s), ord(s)) for s in alphabets], reverse=True)]
    freq_chr_offset = (4, 0, 19, 8, 14)
    ss = list(map(lambda word: word.strip('.\n'), line.split()))
    sl3, sl4 = set(s for s in ss if len(s) == 3), set(s for s in ss if len(s) == 4)

    i, rotate_dict = 0, None
    for order in frequency:
        for offset in freq_chr_offset:
            i = 97 + offset - order
            rotate_dict = {a: b for a, b in zip(alphabets, alphabets[i:] + alphabets[:i])}
            if (check_exists(sl3, rotate_dict, 'the')
                    + check_exists(sl4, rotate_dict, 'this')
                    + check_exists(sl4, rotate_dict, 'that')) > 0:
                break
        else:
            continue
        break

    print(''.join(rotate_dict[s] if s.isalpha() else s for s in line), end='')

Python: while True:
    try:
        b = input()
    except:
        break
    if 'the' in b or 'this' in b or 'that' in b:
        print(c)
    for i in range(1,26):
        c = ''
        for j in b:
            if(j == 'z'):
                c += ('a')
            elif(str.isalpha(j) == 1):
                c += (chr(ord(j) + 1))
            else:
                c += j
        if 'the' in c or 'this' in c or 'that' in c:
            print(c)
            break
        b = c

Python: import fileinput
import string

alphabetArray = list(string.ascii_lowercase)


for data in fileinput.input():
    for n in range(-25, 26):
        replacedStr = data
        for i in range(0, 26):
            if n > 0:
                replacedStr = replacedStr.replace(alphabetArray[i], alphabetArray[(i + n) % 26])
            else:
                replacedStr = replacedStr.replace(alphabetArray[i], alphabetArray[i + n])
        if "this" in replacedStr or "the" in replacedStr or "that" in replacedStr:
            print(replacedStr)
            break

Python: import string
import sys

alpha = string.ascii_lowercase

for line in sys.stdin:
    for i in range(len(alpha)):
        cipher_str = ""
        for s in line:
            if s in alpha:
                cipher_str += alpha[(alpha.index(s)+i) % len(alpha)]
            else:
                cipher_str += s

        if ("the" or "this" or "that") in cipher_str:
            print(cipher_str)
            break
    else:
        print(line)

Python: x=[i for i in input()]
i=0
y=[0 for i in range(4)]
dif1=0
while(i<len(x)-1):
    s=0
    for j in range(4):
        if (x[j]!=' ')and (x[j]!='.')and (x[j]!='\n'):
            y[j]=x[j]
            s=j
        else:
            s=j
            break       
    if s==3 or s==2:
        dif1=ord(y[0])-ord('t')
        dif2=ord(y[1])-ord('h')
        if dif1==dif2:
            if s==2 and ord(y[2])-dif1==ord('e'):
                break
            else:
                if ord(y[2])-dif1==ord('a') or ord(y[2])-dif1==ord('i'):
                    break
                else:
                    i=i+s+1
        else:
            i=i+s+1
            
    else:
        i=i+s+1
for i in range(len(x)):
    if (x[i]!=' ')and (x[i]!='.')and (x[i]!='\n'):
        print(chr(int(ord(x[i]))-dif1),end="")
    else:
        print(x[i],end="")

Python: import string
strings = string.ascii_lowercase
clues = [(19, 7, 8, 18), (19, 7, 0, 19), (19, 7, 4)]
while True:
    try:
        data = input()
    except:
        break
    for word in data.split():
        if len(word) == 4 or 3:
            dif = 19 - (ord(word[0]) - 97)
            enc = ["" for _ in range(26)]
            for k, v in zip([i for i in range(dif, dif+26)], strings):
                enc[k%26] = v
            candidate = tuple(enc.index(c) for c in word)
            try:
                clues.index(candidate)
            except:
                continue
            break
    ans = ""
    for c in data:
        try:
            ans += strings[enc.index(c)]
        except:
            ans += " "
    print(ans)

Python: x = [i for i in input()]
s=0
while(s<len(x)):
	k=s
	while(x[k]!='.' and x[k]!='\n'):
		k=k+1
	k=k+1
	n=[ i for i in range(k-s)]
	p=122-ord(x[s])
	m=ord(x[s])-97
	flag=0
	
	for i in range(p+1):
		for j in range(s,k):
			if x[j]==' ' or x[j]=='.':
				n[j-s]=x[j]
			else:
				n[j-s]=chr(ord(x[j])+i)
		moji=''
		for mk in n:
			moji += mk
		if moji.find('that')!=-1 or moji.find('this')!=-1 or moji.find('the')!=-1 :
			flag=1
			print(moji,end="")
	if flag==0:
		for i in range(m+1):
			for j in range(s,k):
				if x[j]==' ' or x[j]=='.':
					n[j-s]=x[j]
				else:
					n[j-s]=chr(ord(x[j])-i)
			moji=''
			for mk in n:
				moji += mk
			if moji.find('that')!=-1 or moji.find('this')!=-1 or moji.find('the')!=-1 :
				print(moji,end="")
	s=k
print("")

Python: from sys import stdin

def ascii2num(ascii):
    return ord(ascii) - 96

def num2ascii(num):
    return chr(num + 96)

def slide(word,num):
    return ''.join([num2ascii((ascii2num(ascii) - num) % 26 + 1) if ascii != '.' else '.' for ascii in word])

def includekeyword(words):
    for word in words:
        if word in keywords:
            return True
    return False

keywords = ['the', 'this', 'that']

decode = []
for row in stdin:
    words = row.split()
    for num in range(1,27):
        tmp = [slide(word,num) for word in words]
        if includekeyword(tmp):
            decode = tmp
            print(' '.join(decode))
            break

Python: def chg(s,n):
    res=""
    for i in s:
        o=ord(i)
        if 97<=o<=122:
            if o+n<=122:
                res+=chr(o+n)
            else:
                res+=chr(o+n-26)
        else:
            res+=i
    return res

while True:
    try:
        s=input()
        for i in range(25,-1,-1):
            c=chg(s,i)
            e=c.split()
            if "the" in e or "this" in e or "that" in e:
                print(c)
                break
    except:
        break

Python: s = input()
a = "".join([chr(97 + i) for i in range(26)])
b = "".join([a[i -1] for i in range(26)])
x = str.maketrans(a, b)
while True:
    s = s.translate(x)
    if "the" in s or "that" in s or "this" in s:
        print(s)
        break