C11111333133313232233133313331333133313331233132313331322311331333132211321   >>    C1111133313331323223313331333133313331333123313231333132231133133313221132   <<    C11111333133313232233133313331333133313331233132313331322311331333132211323   >>      C11111333133313232233133313331333133313331233132313331322311331333132211322   >>