C111123313331323113313331323133313331333132331112111133131133131331123122321   >>    C11112331333132311331333132313331333133313233111211113313113313133112312232   <<    C111123313331323113313331323133313331333132331112111133131133131331123122323   >>      C111123313331323113313331323133313331333132331112111133131133131331123122322   >>