alphabet = ["a","b","c","d","e","f","g","h","i","j","k","l","m"]

for (letter in alphabet):
    print(letter)

times = 0
while (times < 10):
    print(times)
    times+=1

while True:  
    print(i)  
    i =+ 1  
    if(i > 5):  
        break  