C111113331333132322331333133313331323133313233213133313121111331123231323321   >>    C11111333133313232233133313331333132313331323321313331312111133112323132332   <<    C111113331333132322331333133313331323133313233213133313121111331123231323323   >>      C111113331333132322331333133313331323133313233213133313121111331123231323322   >>