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

long loop(long a, long b, long c, long d, long e, long limit);
long loopb(long limit);
long loopc(long limit);
long loopd(long limit);
long loope(long limit);
long loopf(long limit);
long loopg(long limit);
long looph(long limit);
long loopi(long limit);
long loopj(long limit, long a, long b, long c, long d, long e);
long loopk(long limit, long multiplier);
long loopl(long limit, long multiplier);
long loopm(long limit, long multiplier);
long loopn(long limit, long multiplier);
long loopo(long limit, long multiplier);
long loopp(long limit, long multiplier);
long loopq(long limit, long multiplier);
long loopr(long limit, long multiplier);
long loops(long limit, long multiplier);
long loopt(long limit, long multiplier);

int main(int argc, char *argv[])
{
  long incr; /* increment for each iteration of the loop */
  if (argc!=3) {
    fprintf(stderr,"usage: %s [a-j] n\n",argv[0]);
    exit(1);
  }
  incr = strtol(argv[2],NULL,10);
  switch(argv[1][0]) {
  case 'a':
    loop(1,1,1,1,1,incr*1000000000);
    break;
  case 'b':
    loopb(incr*1000000000);
    break;
  case 'c':
    loopc(incr*1000000000);
    break;
  case 'd':
    loopd(incr*1000000000);
    break;
  case 'e':
    loope(incr*1000000000);
    break;
  case 'f':
    loopf(incr*1000000000);
    break;
  case 'g':
    loopg(incr*1000000000);
    break;
  case 'h':
    looph(incr*1000000000);
    break;
  case 'i':
    loopi(incr*1000000000);
    break;
  case 'j':
    loopj(incr*1000000000,0,0,0,0,0);
    break;
  case 'k':
    loopk(incr*1000000000,1);
    break;
  case 'l':
    loopl(incr*1000000000,1);
    break;
  case 'm':
    loopm(incr*1000000000,1);
    break;
  case 'n':
    loopn(incr*1000000000,1);
    break;
  case 'o':
    loopo(incr*1000000000,1);
    break;
  case 'p':
    loopp(incr*1000000000,1);
    break;
  case 'q':
    loopq(incr*1000000000,1);
    break;
  case 'r':
    loopr(incr*1000000000,1);
    break;
  case 's':
    loops(incr*1000000000,1);
    break;
  case 't':
    loopt(incr*1000000000,1);
    break;
  default:
    fprintf(stderr,"unsupported loop selector\n");
    exit(1);
  }
  return 0;
}