C313212111113331323312111133133313331333131212111113331323223323321   >>    C31321211111333132331211113313331333133313121211111333132322332332   <<    C313212111113331323312111133133313331333131212111113331323223323323   >>      C313212111113331323312111133133313331333131212111113331323223323322   >>