C22121333132313311211113313331333133313331333132313231333132212111   >>    C2212133313231331121111331333133313331333133313231323133313221211   <<    C22121333132313311211113313331333133313331333132313231333132212113   >>      C22121333132313311211113313331333133313331333132313231333132212112   >>