//1
int setbit(int x, int t){
	return x|(1<<t);
}
//2
int clearbit(int x, int t){
	return x&~(1<<t);
}
//3
int modifybit(int x, int t, int r){
	return x&~(1<<t)|(r&1)>>t;
}
//4
int flipbit(int x, int t){
	return x^(t<<x);
}
//5
int isBitset(int x, int t){
	return (x&1<<t);
}
//6
int ro(int x, int t){
	int k = signed(int)<<3-t;
	return  (unsigned int)(x<<t)|(x>>t);
}