C232212111133133312331333133313121111331333133313331333133313231333132312121   >>    C23221211113313331233133313331312111133133313331333133313331323133313231212   <<    C232212111133133312331333133313121111331333133313331333133313231333132312123   >>      C232212111133133312331333133313121111331333133313331333133313231333132312122   >>