C312312111133131212111133133313331322331323223313231333132313331333112311   >>    C31231211113313121211113313331333132233132322331323133313231333133311231   <<    C312312111133131212111133133313331322331323223313231333132313331333112313   >>      C312312111133131212111133133313331322331323223313231333132313331333112312   >>