C11111333133313232233133313331333133313231312111133112331121211321   >>    C1111133313331323223313331333133313331323131211113311233112121132   <<    C11111333133313232233133313331333133313231312111133112331121211323   >>      C11111333133313232233133313331333133313231312111133112331121211322   >>