C1111133313331323223313331333133313112331322121111331311331323133313331123311   >>    C111113331333132322331333133313331311233132212111133131133132313331333112331   <<    C1111133313331323223313331333133313112331322121111331311331323133313331123313   >>      C1111133313331323223313331333133313112331322121111331311331323133313331123312   >>