C1111233131211111211113313331323133313231333133313231331121111331323221321   >>    C111123313121111121111331333132313331323133313331323133112111133132322132   <<    C1111233131211111211113313331323133313231333133313231331121111331323221323   >>      C1111233131211111211113313331323133313231333133313231331121111331323221322   >>