i_word = 0
i_Alphabet = 0
newWord = ''
if(len(old)<len(word)):
while(i_word<len(word)):
if(cheakWord(i_word,i_Alphabet,old,word)):
newWord += new[i_Alphabet]
i_Alphabet += 1
else:
newWord += word[i_word]
i_word += 1
return newWord
def cheakWord(i_word,i_Alphabet,old,word):
if(i_Alphabet<len(old)):
if(word[i_word] == old[i_Alphabet]):
return True
return False
def setup():
S='DevilMayCry'
old='May'
new='Die'
print(my_replace(S,old,new))
setup()
Result
DevilDieCry
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