# Menu Driven calculator.
import math
print("ENTER NUMBERS")
a=input("ENTER INTEGER:")
b=input("ENTER INTEGER:")
a=int(a)
b=int(b)
print("for ADDITION:+")
print("for SUBTRACTION:  -")
print("for MULTIPLICATION:  *")
print("for DIVISION:  /")
print("for SQRT: s")
print("for FACTORIAL: f")
print("for EXPONENT:x")

def add(x,y):
    print("ADDITION of",x," and ",y,"is",x+y)
def subt(x,y):
    if x>y:
        print("SUBTRACTION of",x," and ",y,"is",x-y)
    else:
        print("SUBTRACTION of",y," and ",x,"is",y-x)
def mul(x,y):
    print("MULTIPLICATION of",x," and ",y,"is",x*y)
def div(x,y):
    print("DIVISION of",x," and ",y,"is",x/y)
while True:
    
    opt=input("PLEASE CHOOSE ANY BELOW OPERATION ")
    if opt =='+':
        add(a,b)
    elif opt =='-':
        sub(a,b)
    elif opt =='*':
        mul(a,b)
    elif opt=='/':
        div(a,b)
    elif opt =='s':
        print(math.sqrt(a))
        print(math.sqrt(b))
    elif opt =='f':
        print(math.factorial(a))
        print(b,math.factorial(b))
    elif opt =='x':
        print(math.exp(a))
        print(math.exp(b))
    elif opt=="r":
        if a!=b:
            print("a and be are not equal")
        else:
            print("a and be are equal") 
            
    else:
        print("Please choose correct option....")