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1range_avi1 = array1d(1..3, [7, 8, 9]); 2---------- 3range_avi1 = array1d(1..3, [7, 9, 8]); 4---------- 5range_avi1 = array1d(1..3, [8, 7, 9]); 6---------- 7range_avi1 = array1d(1..3, [8, 9, 7]); 8---------- 9range_avi1 = array1d(1..3, [9, 7, 8]); 10---------- 11range_avi1 = array1d(1..3, [9, 8, 7]); 12---------- 13==========