C123132112322333121111113121111331333133313231333133323223312122211331   >>    C12313211232233312111111312111133133313331323133313332322331212221133   <<    C123132112322333121111113121111331333133313231333133323223312122211333   >>      C123132112322333121111113121111331333133313231333133323223312122211332   >>