num = int(input("Please Enter any Number: "))
i = 1
print("Natural Numbers from 1 to {0} are".format(num))
while (i <= num):
print (i, end = ' ')
i = i + 1OUTPUT:–
Please Enter any Number: 11 Natural Numbers from 1 to 11 are 1 2 3 4 5 6 7 8 9 10 11