gens:=[
    [
        [ 2, 0, 0, 0 ],
        [ 0, 2, 0, 0 ],
        [ 0, 0, 2, 0 ],
        [ 0, 0, 0, 2 ]
    ],
    [
        [ 66, 0, 0, 0 ],
        [ 0, 66, 0, 0 ],
        [ 0, 0, 1, 0 ],
        [ 0, 0, 0, 1 ]
    ],
    [
        [ 1, 0, 1, 0 ],
        [ 1, 0, 66, 0 ],
        [ 0, 1, 0, 1 ],
        [ 0, 1, 0, 66 ]
    ],
    [
        [ 1, 0, 0, 0 ],
        [ 0, 1, 0, 0 ],
        [ 0, 0, 66, 0 ],
        [ 0, 0, 0, 66 ]
    ],
    [
        [ 0, 1, 0, 0 ],
        [ 1, 0, 0, 0 ],
        [ 0, 0, 0, 1 ],
        [ 0, 0, 1, 0 ]
    ],
    [
        [ 1, 0, 0, 0 ],
        [ 0, 66, 0, 0 ],
        [ 0, 0, 1, 0 ],
        [ 0, 0, 0, 66 ]
    ],
    [
        [ 1, 1, 0, 0 ],
        [ 1, 66, 0, 0 ],
        [ 0, 0, 1, 1 ],
        [ 0, 0, 1, 66 ]
    ],
    [
        [ 0, 0, 1, 0 ],
        [ 0, 0, 0, 1 ],
        [ 1, 0, 0, 0 ],
        [ 0, 1, 0, 0 ]
    ],
    [
        [ 1, 0, 0, 0 ],
        [ 0, 0, 0, 1 ],
        [ 0, 0, 1, 0 ],
        [ 0, 1, 0, 0 ]
    ]
]
 * Z ( 67 )^0;;