def solution(s1, s2):
    s11=[]
    s22=[]
    for i in s1:
        s11.append(i)
    for i in s2:
        s22.append(i)
    print s11
    print s22
    for i in ['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']:

        print i

s1 = "aabcc"
s2 = "adcaa"
solution(s1, s2)
