C1111133313331323223313331333133313113313231333133313221121323231   >>    C111113331333132322331333133313331311331323133313331322112132323   <<    C1111133313331323223313331333133313113313231333133313221121323233   >>      C1111133313331323223313331333133313113313231333133313221121323232   >>