/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
import java.math.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
        BigInteger a = new BigInteger("123456474575756568568786786786786783453453");
        BigInteger b = new BigInteger("456534543654564567567567567567564564456");
        BigInteger m = new BigInteger("1000000007");
        BigInteger result = a.add(b).remainder(m);
        System.out.println("result "+result);
	}
}

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