'''
while-as long as condition is true
1. starting value
2. condition or terminating value or ending value
3. update (increment/decrement)
Or
infinite loop
1. starting value
2. condition or terminating value or ending value when it will reach to the ending position

#1 method
d=1
while(d==1):  #
    print("1.area of rectangle")
    print("2.area of circle")
    print("3.exit")
    n=int(input("enter ur choice"))
    if(n==2):
        r=int(input("enter radius"))
        print("area of circle",3.14*r*r)
    elif(n==1):
        l=int(input("enter length"))
        b=int(input("enter breadth"))
        print("area of rectangle",l*b)
    elif(n==3):
        print("end of the program")
        d=0
print("hello ur program is over")
#2 method

while True:  #
    print("1.area of rectangle")
    print("2.area of circle")
    print("3.exit")
    n=int(input("enter ur choice"))
    if(n==2):
        r=int(input("enter radius"))
        print("area of circle",3.14*r*r)
    elif(n==1):
        l=int(input("enter length"))
        b=int(input("enter breadth"))
        print("area of rectangle",l*b)
        break
    elif(n==3):
        print("end of the program")
        break  #statement -is used to terminate or end the loop . it is always used in loop but in condition

print("hello ur program is over")
#--------------------------------------------------------------------------------
'''
"""
while True:
    print("1.area of rectangle")
    print("2.area of circle")
    print("3.exit")
    n=int(input("enter ur choice"))
    if(n==2):
        r=int(input("enter radius"))
        print("area of circle",3.14*r*r)
    elif(n==1):
        l=int(input("enter length"))
        b=int(input("enter breadth"))
        print("area of rectangle",l*b)
  
    elif(n==3):
        print("end of the program")
        break
"""     
#-------------------------------------------------------------------
for i in range(10):
    #print(i)
    if(i==5):
        print(i)
        break