def is_pseudoprime(n):
    return (((2**n + n - 2) % n) == 0)

def main():
    x = 2
    print(str(x)+','),
    x = 3
    
    while x <= 4200:
        if is_pseudoprime(x):
            print(str(x)+','),
        x += 2

if __name__ == "__main__":
    main()