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  1. sum=0
  2. k=45
  3. for i in range(3,0,-1):
  4. for j in range(i+1):
  5. if(j!=i):
  6. sum+=k*i
  7. else:
  8. sum-=k
  9. k+=1
  10.  
  11. print(sum)
  12.  
Success #stdin #stdout 0.02s 9080KB
stdin
Standard input is empty
stdout
498