strings that cycles

[lizarragaman]

Please show your code

list1 = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z']

while list1 > list1[25]:
    print list2 = ['a' + v for v in list1]
    list2 
    while list2 > list2[25]:
        list3 = ['b' + v for v in list1]
    list3

THIS GIVE US ERROR

this is what we have so far. we are new using python and were given with this assignment. thank you for replying