program  sum_long;
var a,b,array[0..100000] of integer;
i:integer;
f:text;
ch:char;
ost:integer;
begin
assign(f,'long.dat');
reset(f);
for i:=0 to 1000 do a[i]:=0;
while not(eoln(f)) do begin
      read(f,ch);
      if ch in ['0'..'9'] then begin
         for i:=a[0] downto 1 do a[i+1]:=a[i];
         a[0]:=a[0]+1;
         a[1]:=ord(ch)-ord('0');
         end;
      end;
for i:=0 to 1000 do b[i]:=0;
while not(eof(f)) do begin
      read(f,ch);
      if ch in ['0'..'9'] then begin
         for i:=b[0] downto 1 do b[i+1]:=b[i];
         b[0]:=b[0]+1;
         b[1]:=ord(ch)-ord('0');
         end;
      end;
close (f);	if a[0]>b[0] then c[0]:=a[0] else c[0]:=b[0];
ost:=0;
for i:=1 to c[0] do begin
                 c[i]:=(a[i]+b[i]+ost) mod 10;
                 ost:=(a[i]+b[i]+ost) div 10;
                      end;

if ost>0 then begin c[0]:=c[0]+1;c[c[0]]:=ost;end;

assign(f,'long.sol');
rewrite(f);
for i:=c[0] downto 1 do write(f,c[i]);
close(f);
end.