ABC-366 B - Vertical Writing

def getInt():
    return int(input())
 
 
def getStringRow(N):
    return [input() for _ in range(N)]
 
 
def main():
    N = getInt()
    S = getStringRow(N)
    S.reverse()
 
    for i in range(max([len(w) for w in S])):
        T = ""
        for s in S:
            T += s[i] if len(s) > i else "*"
        print(T.rstrip("*"))
 
 
if __name__ == "__main__":
    main()