#include <iostream>
#include <fstream>
using namespace std;
ifstream fi("tricouri.in");
ofstream fo("tricouri.out");
int A[300001],X[300001];
int n,m,i,j,p,ok,k,maxim;
int a1,a2;
int S[101];
void g(int k)
{
	int i,t,suma;
	if (k==a1 && ok==0)
	{
		for(i=1;i<=a1;i++)
		{
			fo<<A[i]<<" ";
			suma=suma+S[i];
			
		}
		if(suma%a2==0)
		{
			//for(i=1;i<=a1;i++)
				//cout<<S[i]<<" ";
			ok=1;
			fo<<endl<<suma<<endl;
		}
		
	}
	else
	{
		for (i=maxim;i>=1;i--)
		{
			if (A[i]!=0)
			{
				S[k+1]=i;
				t=1;
				for (j=1;j<=k;j++)
				{
					if (S[j]==S[k+1])
						t=0;
				}
				if (t==1)
				{
					g(k+1);
				}
			}
		}
	}
	
	
}

int main()
{
	fi>>n>>m;
	maxim=-1;
	for (i=1;i<=n;i++)
	{
		fi>>A[i];
		X[A[i]]++;
		if (A[i]>maxim)
		{
			maxim=A[i];
		}
	}
	for (k=1;k<=m;k++)
	{
		fi>>a1>>a2;
		
		p=maxim;
		ok=0;
		g(0);			
		if (ok==0)
		{
			fo<<"-1"<<endl;
		}
	}
	
	fi.close();
	fo.close();
	return 0;
}