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#include <cstdio>
#include <cstring>

char a[5002], b[5002], ret[5002];

int main()
{
  scanf("%s %s", a, b);
  int n = strlen(a), m = strlen(b); 
  
  for (int i = 0; i < n; i++)
  {
    a[5000 - i] = a[n - i - 1];
  }
  for (int i = 0; i <= 5000 - n; i++)
  {
    a[i] = '0';
  }
  for (int i = 0; i < m; i++)
  {
    b[5000 - i] = b[m - i - 1];
  }
  for (int i = 0; i <= 5000 - m; i++)
  {
    b[i] = '0';
  }
  
  int c = 0;
  for (int i = 5000; i >= 0; i--)
  {
    int x = a[i] - '0';
    int y = b[i] - '0';
    int r = x + y + c;
    ret[i] = r % 10 + '0';
    c = r > 9 ? 1 : 0;
  }
  c = 0;
  while (ret[c] == '0') c++;
  printf("%s", ret + c);
  return 0;
}