uinput = input('трёхзначное натуральное число: ') # 123
numbers = [int(i) for i in uinput] # [1, 2, 3]
highest = max(numbers) # 3
lowest = min(numbers) # 1
numbers.pop(numbers.index(highest)) # [1, 2, 3] = [1, 2]
numbers.pop(numbers.index(lowest)) # [1, 2] = [2]
middle = numbers[0] # 2
# print(highest, lowest, middle) 3 1 2
num1 = str(highest) + str(middle) # '32'
if lowest == 0:
~~~~if middle == 0:
~~~~~~~~num2 = str(highest) + str(lowest)
~~~~else:
~~~~~~~~num2 = str(middle) + str(lowest)
else:
~~~~num2 = str(lowest) + str(middle) # '12'
print(num1 + ' - ' + num2 + ' = ' + str(int(num1) - int(num2))) # 32 - 12 = 20
