C111123313331323113313331323133313331333132331112111133132313232223331   >>    C11112331333132311331333132313331333133313233111211113313231323222333   <<    C111123313331323113313331323133313331333132331112111133132313232223333   >>      C111123313331323113313331323133313331333132331112111133132313232223332   >>