C111123313331323113313331333133313331323123231333133313231323132211   >>    C11112331333132311331333133313331333132312323133313331323132313221   <<    C111123313331323113313331333133313331323123231333133313231323132213   >>      C111123313331323113313331333133313331323123231333133313231323132212   >>