C111123313331323113313331333133313231333132312323132313233123231   >>    C11112331333132311331333133313331323133313231232313231323312323   <<    C111123313331323113313331333133313231333132312323132313233123233   >>      C111123313331323113313331333133313231333132312323132313233123232   >>