C313212111113331323312111133133313331333133313331333133313231323223313113313131   >>    C31321211111333132331211113313331333133313331333133313331323132322331311331313   <<    C313212111113331323312111133133313331333133313331333133313231323223313113313133   >>      C313212111113331323312111133133313331333133313331333133313231323223313113313132   >>