C313212111113331323312111133133313331333133313331333133313331331123121321   >>    C31321211111333132331211113313331333133313331333133313331333133112312132   <<    C313212111113331323312111133133313331333133313331333133313331331123121323   >>      C313212111113331323312111133133313331333133313331333133313331331123121322   >>