C3132121111133313233121111331333133313331322331333131333223313133121   >>    C313212111113331323312111133133313331333132233133313133322331313312   <<    C3132121111133313233121111331333133313331322331333131333223313133123   >>      C3132121111133313233121111331333133313331322331333131333223313133122   >>