C3132121111133313233121111331333133313331333133313331333132313231333132211321   >>    C313212111113331323312111133133313331333133313331333133313231323133313221132   <<    C3132121111133313233121111331333133313331333133313331333132313231333132211323   >>      C3132121111133313233121111331333133313331333133313331333132313231333132211322   >>