C11112331333132311331333132313331333133313233121111331333132313331333131212231   >>    C1111233133313231133133313231333133313331323312111133133313231333133313121223   <<    C11112331333132311331333132313331333133313233121111331333132313331333131212233   >>      C11112331333132311331333132313331333133313233121111331333132313331333131212232   >>