C313212111113331323312111133133313331333133313331333133313331333113211321   >>    C31321211111333132331211113313331333133313331333133313331333133311321132   <<    C313212111113331323312111133133313331333133313331333133313331333113211323   >>      C313212111113331323312111133133313331333133313331333133313331333113211322   >>