def subtract(num1, num2): return num1 - num2
def multiply(num1, num2): return num1 * num2
def divide(num1, num2): return num1 / num2
print("зорилгоо сонго уу:") print("1. үгсийн сангийн дайралт") print("2. шууд шаах") print("3. арын хаалга") print("4. хортой холбоос")
choice = int(input("Enter choice (1-4): "))
num1 = float(input("Enter the first number: ")) num2 = float(input("Enter the second number: "))
if choice == 1: result = add(num1, num2) print("The result is:", result) elif choice == 2: result = subtract(num1, num2) print("The result is:", result) elif choice == 3: result = multiply(num1, num2) print("The result is:", result) elif choice == 4: result = divide(num1, num2) print("The result is:", result) else: print("Invalid choice")