def solve(values):
    a = list(values.split(';'))
    b = []
    for i in range(1, int(a[0]) + 1):
        b.append(a[i])

    c = []
    for i in range(int(a[0]) + 2, len(a)):
        c.append(a[i])

    d = {}
    for i in b:
        if ':' in i:
            son, dad = i.split(":")
            son = son.replace(' ', '')
            dad = dad.replace(' ', '')
            d[dad] = son

    s = []
    for i in range(len(c)):
        for j in range(i + 1):
            if c[j] in list(d.keys()):
                if d[c[j]] == c[i]:
                    s.append(c[i])

    return ','.join(s)