C1111233131211111211113313331323133313231333133313221323221121211   >>    C111123313121111121111331333132313331323133313331322132322112121   <<    C1111233131211111211113313331323133313231333133313221323221121213   >>      C1111233131211111211113313331323133313231333133313221323221121212   >>