class Dist:

def_init_(self):

self, dist 1=0

self.dist 2=0

def read(self):

self.dist 1=int(input(“Enter distance 1”))

self.dist 2=int(input(“Enter distance 2”))

def disp(self):

print(“distance 1” , self.dist 1)

print(“distance 2” , self.dist 2)

def add(self):

print(“Total distances” , self.dist 1+self.dist 2)

def sub(self):

print(“Subtracted distance” , self.dist 1-self.dist 2) 

d=Dist( )

choi = “y”

while(choi == “y”):

print(” 1. accept \n 2. Display \n 3. Total \n 4. Subtract”)

ch = int(input(“Enter your choice”))

if(ch==l):

d.read( )

elif(ch==2):

d.disp( )

elif(ch==3):

d.add( )

elif(ch==4):

d.sub( )

else: 

print(“Invalid Input…”)

choi = input(“Do you want to continue”)

Output:

1. Accept

2. Display

3. Add

4. Subtract

Enter your choice : 3

Enter distance 1 : 100

Enter distance 2 : 75

Do you want to continue .. y

1. Accept

2. Display

3. Add

4. Subtract

Enter your choice : 3

Total distances : 175

Do you want to continue .. y

1. Accept

2. Display

3. Add

4. Subtract

Enter your choice : 2

Enter distance 1 : 100

Enter distance 2 : 75

Do you want to continue .. y

1. Accept

2. Display

3. Add

4. Sub

Enter your choice : 4

Subtracted distance : 25

Do you want to continue .. N