import java.io.*;
import java.util.*;

public class D_matsu{
	public static void main(String args[]) throws IOException{
		Scanner sc = new Scanner(System.in);
		while(true){
			int p = sc.nextInt();
			if(p==0) break;
			int s = sc.nextInt();
			exInt table[][] = new exInt[p+1][s+1];
			for(int i=0;i<p+1;i++){
				for(int j=0;j<s+1;j++){
					table[i][j] = new exInt(sc.next());
				}
			}
			Solver sol = new Solver(table,p,s);
			sol.solve();
		}
	}
}

class Solver{
	exInt table[][];
	int p;
	int s;
	int quesrow[];
	int quescol[];
	int quesnum;
	
	Solver(exInt t[][],int ip,int is){
		table = t;
		p = ip;
		s = is;
		quesrow = new int[p+1];
		quescol = new int[s+1];
		initQuesNum();
	}
	
	public void solve(){
		while(calc());
		if(quesnum==0){
			for(int i=0;i<p+1;i++){
				for(int j=0;j<s+1;j++){
					if(table[i][j].quesinit) System.out.println(table[i][j].val);
				}
			}
			System.out.println();
		}
		else{
			System.out.println("NO");
			System.out.println();
		}
	}
	
	private void initQuesNum(){
		for(int i=0;i<p+1;i++) quesrow[i] = 0;
		for(int j=0;j<s+1;j++) quescol[j] = 0;
		quesnum = 0;
		for(int i=0;i<p+1;i++){
			for(int j=0;j<s+1;j++){
				if(table[i][j].ques){
					quesrow[i]++;
					quescol[j]++;
					quesnum++;
				}
			}
		}
	}
	
	private boolean calc(){
		for(int i=0;i<p+1;i++){
			if(quesrow[i]==1){
				calcrow(i);
				return true;
			}
		}
		for(int j=0;j<s+1;j++){
			if(quescol[j]==1){
				calccol(j);
				return true;
			}
		}
		return false;
	}
	
	private void calcrow(int x){
		int y;
		y = Integer.MIN_VALUE;
		for(int j=0;j<s+1;j++){
			if(table[x][j].ques) y = j;
		}
		assert y!=Integer.MIN_VALUE : "error in function calcrow";
		if(y==s){
			for(int j=0;j<s;j++) table[x][y].val += table[x][j].val;
			table[x][y].ques = false;
			quesrow[x]--;
			quescol[y]--;
			quesnum--;
		}
		else{
			table[x][y].val = table[x][s].val;
			for(int j=0;j<s;j++){
				if(j!=y) table[x][y].val -= table[x][j].val;
			}
			table[x][y].ques = false;
			quesrow[x]--;
			quescol[y]--;
			quesnum--;
		}
		//System.out.println("calcrow "+x+" "+y+" "+table[x][y].val);
	}
	
	private void calccol(int y){
		int x;
		x = Integer.MIN_VALUE;
		for(int i=0;i<p+1;i++){
			if(table[i][y].ques) x = i;
		}
		assert x!=Integer.MIN_VALUE : "error in function calcrow";
		if(x==p){
			for(int i=0;i<p;i++) table[x][y].val += table[i][y].val;
			table[x][y].ques = false;
			quesrow[x]--;
			quescol[y]--;
			quesnum--;
		}
		else{
			table[x][y].val = table[p][y].val;
			for(int i=0;i<p;i++){
				if(i!=x) table[x][y].val -= table[i][y].val;
			}
			table[x][y].ques = false;
			quesrow[x]--;
			quescol[y]--;
			quesnum--;
		}
		//System.out.println("calccol "+x+" "+y+" "+table[x][y].val);
	}
}


class exInt{
	int val;
	boolean ques;
	boolean quesinit;
	
	exInt(String s){
		if(s.equals("?")){
			val = 0;
			ques = true;
			quesinit = true;
		}
		else{
			val = Integer.parseInt(s);
			ques = false;
			quesinit = false;
		}
	}
}