C232212111133133312331333133313231333132313121111331313331333132213121   >>    C23221211113313331233133313331323133313231312111133131333133313221312   <<    C232212111133133312331333133313231333132313121111331313331333132213123   >>      C232212111133133312331333133313231333132313121111331313331333132213122   >>