We are passing in 3 inputs.

a list of numbers
a multiplier value, M
a value, N
You should multiply every Nth element (do not multiply the 0th element) by M. So, if N is 3, you start with the 3rd element, which is index 2.

If there are less than N elements then you should output the unchanged input list.
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# Get our input from the command line
import sys
M= int(sys.argv[2])
N= int(sys.argv[3])

# convert strings to integers
numbers= sys.argv[1].split(',')
for i in range(0, len(numbers)):
  numbers[i]= int(numbers[i])

# Your code goes here
for N in numbers:
  if numbers[i]>0:
    total =N * M
    print(total)
  else:
    print(numbers)