#python3 def classify_nums(nums) : arr = [0]*20*20 i = 1 while i < len(nums) : for j in range(0, len(arr)) : arr[j] = nums[i : i+2] i += 3 return arr def multiple_horizon(arr) : mul = 0 mul_max = 0 i = 0 while i < 20*20 : for j in range(0, 20-3) : mul = int(arr[i+j]) * int(arr[i+j+1]) * int(arr[i+j+2]) * int(arr[i+j+3]) if mul > mul_max : mul_max = mul i += 20 return mul_max def multiple_vertical(arr) : mul = 0 mul_max = 0 for i in range(0, 20) :