def sum_1(num1,num2):
    return num1+num2

def sub(num1,num2):
    return num1-num2

def mul(num1,num2):
    return num1*num2

def div(num1,num2):
    return num1/num2

num1=int(input("Enter first number: "))
num2=int(input("Enter second number: "))

print(sum_1(num1,num2))
print(sub(num1,num2))
print(mul(num1,num2))
print(div(num1,num2))