C11111333133313232233133313331333133313231312111133131133132212113311233131   >>    C1111133313331323223313331333133313331323131211113313113313221211331123313   <<    C11111333133313232233133313331333133313231312111133131133132212113311233133   >>      C11111333133313232233133313331333133313231312111133131133132212113311233132   >>