def processCEF(assemeblyModelSubstring):
    """This function parses the substrings of the assembly model string and provides back information on the modularity and planarity."""
    assemeblyModelSubstring = assemeblyModelSubstring[1:]
    nummod = assemeblyModelSubstring.split('X')
    num = int(nummod[0])
    mod = int(nummod[1])
    return num, mod