C :

#include<stdio.h>

int main()
{
	int a,b,c;
	a=123456789;
	b=987654321;
	c=a+b;
	printf("%d+%d=%d\n",a,b,c);
	return 0;
}

C++ :

#include<stdio.h>

int main()
{
	int a,b,c;
	a=123456789;
	b=987654321;
	c=a+b;
	printf("123456789+987654321=%d\n",c);
	return 0;
	
}

Pascal :

begin
  writeln('123456789+987654321=',123456789+987654321);
end.