comefrom: <doocs>2221.Find Triangular Sum of an Array_1.py
code: def triangularSum( nums: List[int]) -> int:
      n = len(nums)
      for i in range(n, 0, -1):
          for j in range(i - 1):
              nums[j] = (nums[j] + nums[j + 1]) % 10
      return nums[0]
masked: def sample_funcname ( var_0 : List [ int ] ) -> int :
      var_4 = len ( var_0 )
      for var_8 in range ( var_4 , 0 , - 1 ) :
          for var_9 in range ( var_8 - 1 ) :
              var_0 [ var_9 ] = ( var_0 [ var_9 ] + var_0 [ var_9 + 1 ] ) % 10
      return var_0 [ 0 ]
  