C313212111113331323312111133133313331333132233133313133313113313231333112311   >>    C31321211111333132331211113313331333133313223313331313331311331323133311231   <<    C313212111113331323312111133133313331333132233133313133313113313231333112313   >>      C313212111113331323312111133133313331333132233133313133313113313231333112312   >>