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

public class hard
{

public static String reverse(String text)
{String out="";
 int i=text.length()-1;
 while (i>=0)
 {out=out+text.charAt(i);
  i--;
 }
 return out;
}


public static void main(String [] dummy) throws Exception
{String line;
 int i=0;
 String [] inp = new String[3];
 int [] val = new int[3];
 inp[0]="";
 inp[1]="";
 inp[2]="";
 StringTokenizer s;
 boolean error;
 BufferedReader f= new BufferedReader(new FileReader("hard.in"));
 while ((line=f.readLine())!=null)
 { i=0;
   s =new StringTokenizer(line,"+=");
   error=false;
   while (s.hasMoreTokens())
   {inp[i]=s.nextToken();
    if (inp[i].length()>7) error=true;
    try
    {Integer.parseInt(inp[i]);
    }
    catch (NumberFormatException e)
    {error=true;
    }
    if (!error) val[i]=Integer.parseInt(reverse(inp[i]));
    i++;   
   }
   if (!error)
   if (val[2]==val[0]+val[1]) System.out.println("True");
    else System.out.println("False");
   if (val[0]+val[1]+val[2]==0) break;   
 
 }
 
} 

}