TOPIC

pal = input()
while pal != ".":

    vec = pal.split()
    k = 0
    l = ""

    d = dict()
    for i in vec:
        if i[0] not in d:
            k = (len(i) - 2)*vec.count(i)
            if k != 0:
                d[i[0]] = [i,k]
        else:
            k = (len(i) - 2)*vec.count(i)
            if k > d[i[0]][1]:
                d[i[0]] = [i,k]

    for i,j in d.items():
        l = i + "."
        for vi,v in enumerate(vec):
            if j[0] == v:
                vec[vi] = l

    print(" ".join(vec))
    print(len(d))

    for i,j in d.items():
        print(f"{i}. = {j[0]}")

    pal = input()

alguem saberia me dizer por que estou recebendo Runtime error?