C232212111133133312331333133313231333132313121111331323221212121   >>    C23221211113313331233133313331323133313231312111133132322121212   <<    C232212111133133312331333133313231333132313121111331323221212123   >>      C232212111133133312331333133313231333132313121111331323221212122   >>