#include<stdio.h>

int main()
{
  FILE *f=fopen("adunare.in", "r");
  FILE *g=fopen("adunare.out", "w");
  long a,b,c,d,i=0;
  while(!feof(f))
  {
  fscanf(f, "%d", &a);
  fscanf(f, "%d", &b);
  c=a+b;
  d=c;
  while(d)
  {
  d=d/10;
  i++;
  }
  while(i)
  {
  d=d*10;
  i--;
  }
  i=c;
  c=c*d+i;
  fprintf(g, "%d", c);
  }
  fclose(g);
  return 0;
}