C111123313331323113313331323133313331333132331112111133132313221   >>    C11112331333132311331333132313331333133313233111211113313231322   <<    C111123313331323113313331323133313331333132331112111133132313223   >>      C111123313331323113313331323133313331333132331112111133132313222   >>