C11111333133313232233133313331333133313231312111133132212211321   >>    C1111133313331323223313331333133313331323131211113313221221132   <<    C11111333133313232233133313331333133313231312111133132212211323   >>      C11111333133313232233133313331333133313231312111133132212211322   >>