C1111133313331323223313331333133313113313231333133313222321311223321   >>    C111113331333132322331333133313331311331323133313331322232131122332   <<    C1111133313331323223313331333133313113313231333133313222321311223323   >>      C1111133313331323223313331333133313113313231333133313222321311223322   >>