You are going to act as a Python interpreter. You will be given a valid python program below. Write down what you think the result of its execution would be. Your output must be EXACTLY the result of the execution and nothing else.
situation
system
def fillMissingValues(arr, n): 
   
    for i in range(n): 
          
        if (arr[i] == -1): 
              
            # j is used to store the index of 
            # element before the zero 
            j = i - 1; 
            while (arr[j] != -1 and j >= 0) : 
                j -= 1; 
  
            # If there is no element before 0, 
            # then assign zeroes to all  
            # missing elements 
            if (j < 0): 
                j = i; 
  
            # fill the missing elements with 
            # the last found non-zero element 
            while (j < n): 
                arr[j] = arr[j - 1]; 
                j += 1; 
  
  
# Driver program 
arr = [ 3, 7, -1, 4, 5, 6, -1, 1 ]; 
n = len(arr); 
fillMissingValues(arr, n); 
  
# Print the modified array 
for i in range(n): 
    print(arr[i], end = ' ');
user
3 7 7 7 7 7 7 7
assistant