arr1 = [9, 8, 9, 7, 8, 9, 6] #viewer problem like 2 slits problem tripplets = [] for x in arr1: # 1. num is fixed for a in range(1, 10): # 2. num from 1..9 for b in range(1, 10): # 3. num from 1..9 [...] Read more