print('digraph {')
with open('input.txt') as fh:
    for line in fh:
        line = line.rstrip()
        a, b = line.split(' -> ', 1)
        aa = a.lstrip('&').lstrip('%')
        print(f'  {aa} [label="{a}"]')
        for c in b.split(', '):
            print(f'  {aa} -> {c}');
print('}')