C11111333133313232233133313331333133313331312111133133312111133132233112321   >>    C1111133313331323223313331333133313331333131211113313331211113313223311232   <<    C11111333133313232233133313331333133313331312111133133312111133132233112323   >>      C11111333133313232233133313331333133313331312111133133312111133132233112322   >>