inp 3
# Input is a, b [Type I sgens for L7(2)]; u (AM: L72G1-a2p0W1).
mu 1 2 4
iv 4 2
pwr 4 4 5
mu 5 3 6
pwr 10 4 5
mu 6 5 4
mu 4 3 6
mu 3 2 4
pwr 3 2 5
mu 6 5 3
mu 3 4 2
# oup 2 1 2