# Vermatrix Supreme (crypto 100)hangout.py is the code of server.  After looks through the code of server, we find that it encrypt by  ``` pythondef fixmatrix(matrixa, matrixb):    out = [[0 for x in xrange(3)] for x in xrange(3)]        for rn in xrange(3):        for cn in xrange(3):            out[cn][rn] = (int(matrixa[rn][cn])|int(matrixb[cn][rn]))&~(int(matrixa[rn][cn])&int(matrixb[cn][rn]))    return out```(a|b)&~(a&b) is actually a^bSo we only needs to XOR the string back by its permutation. The seed is arranged to 3*3 matrixes, and transpose every iteration. After some try and error we figure out the solution (solve.py).