C111123313331323113313331333133313331323133113313331323211113121   >>    C11112331333132311331333133313331333132313311331333132321111312   <<    C111123313331323113313331333133313331323133113313331323211113123   >>      C111123313331323113313331333133313331323133113313331323211113122   >>