C11112331333132311331333133313331323133313231131211113313232123122321   >>    C1111233133313231133133313331333132313331323113121111331323212312232   <<    C11112331333132311331333133313331323133313231131211113313232123122323   >>      C11112331333132311331333133313331323133313231131211113313232123122322   >>