lc = l in [0,1,2] and [0,1,2] or l in [3,4,5] and [3,4,5] or l in [6,7,8] and [6,7,8]

cc = c in [0,1,2] and [0,1,2] or c in [3,4,5] and [3,4,5] or c in [6,7,8] and [6,7,8]