while True:
    print("n=============== Find All Pythagorean Triplets in a Given Range ===============n")    
 
    limit=int(input("Enter upper limit:"))
    c=0
    m=2
    while(c<limit):
        for n in range(1,m+1):
            a=m*m-n*n
            b=2*m*n
            c=m*m+n*n
            if(c>limit):
                break
            if(a==0 or b==0 or c==0):
                break
            print(a,b,c)
        m=m+1
 
    opt = input("nDo you want to try again?(yes/no): ")
           
    if opt.lower() == 'yes':
        ret=False
    elif opt.lower() == 'no':
        ret=True
        print("Exiting program....")
    else:
        print("Please enter yes/no:")
        break
 
    if ret == False:
        continue