print("Here, you can find the list of exercises from Class 9 Maths Textbook")
ask= float(input("Which excercise do you want from Number Systems: "))
if  ask== 1.1:
    print("https://byjus.com/ncert-solutions-for-class-9-maths-chapter-1-number-systems-ex-1-1/")
if ask==1.2:
    print("https://byjus.com/ncert-solutions-for-class-9-maths-chapter-1-number-systems-ex-1-2/")
if ask==1.3:
    print("https://byjus.com/ncert-solutions-for-class-9-maths-chapter-1-number-systems-ex-1.3/")
if ask==1.4:
    print("https://byjus.com/ncert-solutions-for-class-9-maths-chapter-1-number-systems-ex-1.4/")
if ask==1.5:
    print("https://byjus.com/ncert-solutions-for-class-9-maths-chapter-1-number-systems-ex-1.4/")
if ask== "Full Chapter":
    print("https://byjus.com/ncert-solutions-class-9-maths/chapter-1-number-systems/")
else:
    print("Invalid")

#Polynomials:
ask1= float(input("Which excercise from Polynomials do you want: "))
if ask1==2.1:
    print("Ex 2.1:\n https://byjus.com/ncert-solutions-for-class-9-maths-chapter-2-polynomial-ex-2-1/")
if ask1==2.2:
    print("Ex 2.2: \n https://byjus.com/ncert-solutions-for-class-9-maths-chapter-2-polynomial-ex-2-2/")
if ask1==2.3:
    print("Ex 2.3: \n https://byjus.com/ncert-solutions-for-class-9-maths-chapter-2-polynomial-ex-2-3/")
if ask1==2.4:
    print("Ex 2.4: \n https://byjus.com/ncert-solutions-for-class-9-maths-chapter-2-polynomial-ex-2-4/")
if ask1==2.5:
    print("Ex 2.5: \n https://byjus.com/ncert-solutions-for-class-9-maths-chapter-2-polynomial-ex-2-5/ ")
else:
    print("Invalid Excercise Number")




