C111113331333132322331333133313331323133313233213133313121111331313313111   >>    C11111333133313232233133313331333132313331323321313331312111133131331311   <<    C111113331333132322331333133313331323133313233213133313121111331313313113   >>      C111113331333132322331333133313331323133313233213133313121111331313313112   >>