C313212111113331323312111133133313331333133313331333133313331323232211321   >>    C31321211111333132331211113313331333133313331333133313331333132323221132   <<    C313212111113331323312111133133313331333133313331333133313331323232211323   >>      C313212111113331323312111133133313331333133313331333133313331323232211322   >>