C1111133313331323223313331333133313311211111211331323312111133311   >>    C111113331333132322331333133313331331121111121133132331211113331   <<    C1111133313331323223313331333133313311211111211331323312111133313   >>      C1111133313331323223313331333133313311211111211331323312111133312   >>