［AtCoder］ABC-104｜A - Rated for Me

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• 🔗ABC-104 A - Rated for Me

提出結果

def getInt():
    return int(input())


def main():
    r = getInt()

    print('ABC' if r < 1200 else 'ARC' if r < 2800 else 'AGC')


if __name__ == "__main__":
    main()