C111123313331323113313331331121111331323132322331323133311211311   >>    C11112331333132311331333133112111133132313232233132313331121131   <<    C111123313331323113313331331121111331323132322331323133311211313   >>      C111123313331323113313331331121111331323132322331323133311211312   >>