long long rand_state = 24;
long long rand_para1 = 37;
long long rand_para2 = 37;

int randn()
{
	rand_state = (rand_state*rand_state + rand_state*rand_para1 +rand_para2)%15555557;
	return rand_state;
}

//seed with number from 0 to 672
void srandn(int seed)
{
	rand_state = seed + 2753;
	
		randn();
}