C312322331333132212111133133313331312111133132313331333221211111311211   >>    C31232233133313221211113313331333131211113313231333133322121111131121   <<    C312322331333132212111133133313331312111133132313331333221211111311213   >>      C312322331333132212111133133313331312111133132313331333221211111311212   >>