# define a variable called `word` and assign it the value "gmit"
word = "gmit"
# print the word in all uppercase letters
print(word.upper())
# print the word in all lowercase letters
print(word.lower())
# print the length of the word
print(len(word))
# check if the word starts with the letter "g"
print(word.startswith("g"))
# check if the word ends with the letter "t"
print(word.endswith("t"))
# check if the word contains the letter "m"
print("m" in word)
# replace the letter "i" with the letter "a"
modified_word = word.replace("i", "a")
print(modified_word)