int read()
{
	int x = 0,flag = 0;
	char c = getchar();
	while(!isdigit(c)) flag |= (c == '-'),c = getchar();
	while(isdigit(c))  x = (x << 1) + (x << 3) + (c ^ 48),c = getchar();
	return flag ? -x : x;
}
void write(int x,char div = '\n')
{
	if (x == 0) {putchar('0'); putchar(div); return;}
	string s; s += div;
	if (x < 0) putchar('-'),x = -x;
	while (x)  s = char(x % 10 + '0') + s,x /= 10;
	for (char c : s) putchar(c);
}

比我uid少1的是gay