program Project2;

{$APPTYPE CONSOLE}

uses
  SysUtils;

var a:array[1..1000,1000] of integer;n,m,i,j:integer,input,output,text;
begin
  assign(input,'legancy.in');
  assign(output,'lagancy.out');
  reset(input);
  rewrite(output);
  readln(input,n,m);
  while not eof(input) do begin
  j:=j+1;
  while not eoln(input) do begin
  i:=i+1;
  read(input,a[j,i]);
  end;
  z:=i;
  i:=0;
  write(output,j);
  close(output);
end.