C1111233131211111211113313331323133313231121211113313331331121213221   >>    C111123313121111121111331333132313331323112121111331333133112121322   <<    C1111233131211111211113313331323133313231121211113313331331121213223   >>      C1111233131211111211113313331323133313231121211113313331331121213222   >>