C231311112223313112113313231111331323131133133313232233132233121   >>    C23131111222331311211331323111133132313113313331323223313223312   <<    C231311112223313112113313231111331323131133133313232233132233123   >>      C231311112223313112113313231111331323131133133313232233132233122   >>