#include<bits/stdc++.h>
#define int long long
#define double long double
#define R(x) x=read()
#define abs(x) ((x)>=0?(x):-(x))
#define pushq(x) push('s');push('q');push('r');push('t');push('(');write(x);push(')');
using namespace std;
inline int read(){
	register int r=0,f=1;register char c=getchar();
	while(!isdigit(c)){
		if(c=='-')f=-1;
		c=getchar();
	}
	while(isdigit(c)){
		r=(r<<3)+(r<<1)+(c^48);
		c=getchar();
	}
	return r*f;
}
char obuf[1<<21],*pp=obuf;
void push(char c){
	if(pp-obuf==1<<21)fwrite(obuf,1,pp-obuf,stdout),pp=obuf;
	*pp++ = c;
}
class O{public:~O(){fwrite(obuf,1,pp-obuf,stdout);}}_;
inline void write(int x){
	static int _t_[64]={},len=0;
	if(x<0){push('-');x=-x;}
	while(x||!len){_t_[++len]=x%10;x/=10;}
	while(len)push(48^_t_[len--]);
}
void w(int p,int q){//p/q
	bool f=(p*q>=0);//解是否非负 
	if(!f)push('-');
	p=abs(p);q=abs(q);
	int g=__gcd(p,q);
	p/=g;q/=g;
	write(p);
	if(q!=1){
		push('/');
		write(q);
	}
}
void w2(int q1,int q2,int r,int p){
	if(q1){
		w(q1,p);
		push('+');
	}
	q2=abs(q2);p=abs(p);
	int g=__gcd(q2,p);
	q2/=g;p/=g;
	if(q2==p){
		pushq(r);
	}else if(p==1){
		write(q2);
		push('*');
		pushq(r);
	}else if(q2==1){
		pushq(r);
		push('/');
		write(p);
	}else{
		write(q2);
		push('*');
		pushq(r);
		push('/');
		write(p);		
	}
}
int t,M;
int a,b,c,del;
signed main(){
//#ifndef LOCAL
//	freopen("uqe.in","r",stdin);
//	freopen("uqe.out","w",stdout);
//#endif
	R(t);R(M);
	while(t--){
		R(a);R(b);R(c);
		del=b*b-4*a*c;
		if(del<0){
			push('N');
			push('O');
		}else{
			double d=sqrt(del),d2=del*1.0;
			d=d*d;
			if(d==d2){//有理数 
				int q=2*a,p=-b;
//				cerr << 'p' << endl;
				//取到较大的根 
				if( (p+sqrt(del))/q > (p-sqrt(del))/q ){
					p+=sqrt(del);
				}else{
					p-=sqrt(del);
				}
//				cerr << p << " " << q << endl;
				if(p==0){
					write(0);
				}else w(p,q);
			}else{//无理数 
				int q1=-b,r=del,q2=1,p=2*a;
				for(int i=2;i*i<=r;i++){
					while(r%(i*i)==0){
						r/=(i*i);
						q2*=i;
					}
				}
				w2(q1,q2,r,p);
			}
		}
		push('\n');
	}
	return 0;
}
/*
1 1121
6 0 0
*/

洛谷上 WA 了第四个点，图灵上第八个