040000 tree 8efddb54960f793c2b6d40d8a58e4bed85afbad7	add
040000 tree e0815e27993035198541a17e147acabf1bcbd7d2	bit-and
040000 tree 724ae66c6e0d5f3f1f5a6dd5250042621296a1a0	bit-or
040000 tree fdbb919a962b43e6c0cf020d141542ec705fd35e	bit-xor
040000 tree 180fc8a01dbd0ee05b914bac9c4ee9e137cacb53	div
040000 tree de86c9ebc63c51a663b34c96a2fa962681641186	mod
040000 tree a090de531c3d6a02d91032d6b4ad45251fb77fc1	mul
040000 tree 871560a7f6a0f1cb64a1deb25df0ec380059097f	sub