Enter a number: 5
S = 1 + 2 + 3 + 4 + 5
S = 15

Enter a number: 5
M = 1 * 2 * 3 * 4 * 5
M = 120

Enter first number: 3
Enter second number: 8
The biggest number is '8'

Enter first number: 3
Enter second number: 8
The lowest number is '3'

Enter first number: 14
Enter second number: 5
14 + 5 = 19
14 - 5 = 9
14 * 5 = 70
14 / 5 = 2