from boa.builtins import concat


def Main():

    c = b"\x01\x04\xaf\x09"

    l = len(c)

    b = c[2:l]

    j = b"\x01\x02\x03\x04\x05\x06\x07"

    k = concat(c, j)

    m = k[3:6]

    return concat(m, b)