C111123313331323113313331333133313331323132333132333132321133112321   >>    C11112331333132311331333133313331333132313233313233313232113311232   <<    C111123313331323113313331333133313331323132333132333132321133112323   >>      C111123313331323113313331333133313331323132333132333132321133112322   >>