How to complete this code?

Question

Hey guys, I don't get this exercise about the"for loop". Can you help me? It says to fill in the blankets to complete the code:

list = ['1', '2', '3', '4']
_I_letters_
print(I)

I know I have to put:
forI_letters:
print(I)
but I don't get what to type after the I

Answer 1

# "in"

for l in letters:
print(l)

# anyway, don't forgot that indentation is mandatory in Python (even for human reading ;P)