C1111133313331323223313331333133313231323112113313121133131333121   >>    C111113331333132322331333133313331323132311211331312113313133312   <<    C1111133313331323223313331333133313231323112113313121133131333123   >>      C1111133313331323223313331333133313231323112113313121133131333122   >>