1 l1 = [183,0,1,2,-184,367]
 2 
 3 num = []
 4 
 5 for i in range (0,len(l1)):
 6 
 7     for l in range (i+1,len(l1)):
 8 
 9         if l1[i]+l1[l]==183:
10             num.append((l1[i],l1[l]))
11             sum = set(num)
12 
13 print(sum)