C3123121111113313121111331323133313331323133313231333133313221122333131   >>    C312312111111331312111133132313331333132313331323133313331322112233313   <<    C3123121111113313121111331323133313331323133313231333133313221122333133   >>      C3123121111113313121111331323133313331323133313231333133313221122333132   >>