C11112331333132311331333133313331323133313231131211113313113313231332321321   >>    C1111233133313231133133313331333132313331323113121111331311331323133232132   <<    C11112331333132311331333133313331323133313231131211113313113313231332321323   >>      C11112331333132311331333133313331323133313231131211113313113313231332321322   >>