C11112331333132311331333133313331323133313231131211113313112331312321   >>    C1111233133313231133133313331333132313331323113121111331311233131232   <<    C11112331333132311331333133313331323133313231131211113313112331312323   >>      C11112331333132311331333133313331323133313231131211113313112331312322   >>