#ifndef V/*/
#ifndef V//*/

#define V   + __LINE__
#define V   + __LINE__

static int u, b, e, l, _ = 0/*/
static int u, b, e, l, _ = 0/*/
#include __FILE__
;/*/
;//*/
//*/

#include<stdio.h>
#include<stdlib.h>

static char *d = NULL, *p, *q, *r;

static void f(void)
{
   fwrite(d, q - d, 1, stdout);
}

static void t(char *s)
{
   e -= s - d;
   for(p = d; p != d + e;)
      *p++ = *s++;
}

static void a(void)
{
   q = r = d + e;
   for(q -= q[l = -1] == 10; d - q--;)
   {
      if( *q == 10 )
      {
         l--;
         if( l < u )
         {
            l++;
            break;
         }
         r = q + 1;
      }
   }
   q++;

   if( !_ )
   {
      f();
   }

   t(q);
}

int main(int z, char **v)
{
   _ = __LINE__ < 59 ? 1 : _ == 158 ? 0 : -1;

   if( z - 2 )
   {
      return printf("%s {line_%s}\n", *v, _ ? "count" : "number");
   }

   u = atoi(v[l = 1]);
   u = _ ? _ * abs(u) : u;

   b = e = z = 0;
   while( !z )
   {
      if( e == b && !(d = (char*)realloc(d, b += 4096)) )
      {
         fputs("Out of memory\n", stderr);
         return 1;
      }
      e += fread(d + e, 1, b - e, stdin);
      z = e < b;

      if( u < 0 )
      {
         if( e )
         {
            a();

            if( z )
            {
               if( !_ && l == u )
               {
                  t(r -= q - d);
               }
               q = d + e;
               f();
            }
         }
      }
      else
      {
         for(p = q = d; p != d + e; l += *p++ == 10)
         {
            if( _ ? l <= u : l != u )
               *q++ = *p;
         }
         f();
         e = 0;
      }
   }

   return 0;
}

/*
#include<stdio.h>

int I = 8, i;

void O(const char *c)
{
   const char *o[] =
   {
      "D*DA",
      "define",
      "#include",
      "#if",
      "#endif",
      "ndefC",
      "PSC0P#uU",
      "R<stdio.h>",
      "SUoPA",
      "P#uUO",
      "#QC_CB",
      "PintCmain(void){returnCputs(_)<0;}"
   };

   while( (i = *c++) )
      i > 79 && i < 92
         ? O(o[i - 80]), 0
         : putchar(i > 64 && i < 69 ? (i * 105 ^ 99) * 3 % 53 : i);
}

int main(void)
{
   for(O("D*AZoneBPXXWPW"); I < 9973; O(i < I++ ? "A" : "P"))
   {
      for(i = 2; i < I && I % i; i++);
   }
   O("D*DZcompositeBAPSU_AZprimeBATDP#QCoPPRC__FILE__ASC!Qd(o)&&Qd(O)V_AZ?BAPTD*DTDPD*DTD[[DPTPTYYPSC__LINE__==9994VoDPTD*ATP#QCODP");
   return 0;
}
*/

#undef V/*/
#undef V/*/
#define V/*/
#define V/*/
#endif/*/
#endif/*/
V//*/