C313212111113331323312111133133313331333133313331333133313231333131133132311321   >>    C31321211111333132331211113313331333133313331333133313331323133313113313231132   <<    C313212111113331323312111133133313331333133313331333133313231333131133132311323   >>      C313212111113331323312111133133313331333133313331333133313231333131133132311322   >>