3.py

N = int(input("Enter a num: "))
a, b = 0, 1
for i in range(N):
    c = a + b
    a = b
    b = c

N = int(input("Enter a num: "))
a, b = 0, 1
for i in range(N):
    print(a)
    c = a + b
    a = b
    b = c

num = int(input("Enter a num: "))
product = 1

while num > 0:
    digit = num % 10
    product *= digit
    num //= 10
print(f"The product of all digits is {product}.")

num = int(input("Enter a num: "))
ls_digit = 0

while num > 0:
    digit = num % 10
    if digit > ls_digit:
        ls_digit = digit
    num //= 10
print(f"The largest digit is {ls_digit}.")



lst = ["Ram", "Shashi", "Adhi", "Shiv"]

print("original lst =", lst)

lst.append("ankit")
lst.append("sharan")

print("modified lst (append)=", lst)

lst.insert(1, "gammanna")
print("modified lst (insert)=", lst)

lst.remove("ankit")
print("modified lst (remove)=", lst)

#lst.remove("ramesh")  #ValueError: list.remove(x): x not in list
#print("modified lst =", lst)

print("modified lst (remove)=", lst)

#lst.remove("ramesh")
#print("modified lst (remove)=", lst)

lst.pop()
print("modified lst (pop)=", lst)

lst.pop(1)
print("modified lst (pop)=", lst)

del lst[1]
print("modified lst (del)=", lst)

#del lst
#print("after del lst", lst) #NameError: name 'lst' is not defined.