# Input an integer number n and print first n prime numbers
print("Number of primes: ");
s = scan();
n = int(s);

k = 0;
p = 2;
while (k < n)
    if (p == 2)
        print(" ", p);
        k = k+1;
        p = p+1;
    else
        prime = 1;
        d = 3;
        while (prime == 1 && d*d <= p)
            if (p % d == 0)
                prime = 0;
                break;
            endif
            d = d+2;
        endwhile
        if (prime == 1)
            print(" ", p);
            k = k+1;
            if (k % 10 == 0)
                println();
            endif
        endif
        p = p+2;
    endif
endwhile

println();