import binascii


class Analyzer:
    def __init__(self):
        self.stats = dict()

    def consume(self, tag, data):
        if tag == "stdin":
            return

        first_byte = binascii.unhexlify(data)[0]
        self.stats[first_byte] = self.stats.get(first_byte, 0) + 1


def run(filename):
    analyzer = Analyzer()

    with open(filename, "r") as f:
        for line in f.readlines():
            tag, data = line.rstrip("\n").split(" ", 1)
            analyzer.consume(tag, data)

    for k, v in analyzer.stats.items():
        print(f"{k}: {v}")

    return analyzer


if __name__ == "__main__":
    import sys

    run(sys.argv[1])