Write a program that displays first n prime numbers.

Input : 
How many prime numbers : 5

Output :-

a[1] = 2

a[2] = 3

a[3] = 5

a[4] = 7

a[5] = 11



Input : 
How many prime numbers : 3

Output :-

a[1] = 2

a[2] = 3

a[3] = 5