C11111333133313232233133313331333133313231312111133131133132233132331121   >>    C1111133313331323223313331333133313331323131211113313113313223313233112   <<    C11111333133313232233133313331333133313231312111133131133132233132331123   >>      C11111333133313232233133313331333133313231312111133131133132233132331122   >>