''' PROBLEM STATEMENT :DESIGN A CALCULATOR HAVING FOLLOWING OPERATIONS :
 +,-,*,/,//, %   USING TWO OPERANDS 
 if the user type operator then that operation should be performed'''

while True:
  
    print(" WELCOME TO 2 OPERAND CALCULATOR!")

    # a=4
    # b=2
    a= int(input("Enter the first number : "))
    b= int(input("Enter the second number : "))
    sign=input("Enter the Operator/Sign to perform operation : 1.Add /n 2. Sub / 3. Mul /4.Div /5.Division floor/")
    if sign=="+":
        print(" a+b =",a+b)
    elif sign=="-" :
        print(" a-b =",a-b)
    elif sign=="*" :
        print(" a*b =",a*b)
    elif sign=="/" :
        print(" a/b =",a/b)
    elif sign=="//" :
        print(" a//b =",a//b)
    elif sign=="%" :
        print (" a%b =",a%b )