#include "ChessFloor.cpp"

int main(int argc, char **argv)
{
  int i;
  class ChessFloor TheClass;
  int retval;
  vector <string> floor;

  if (argc != 2) { fprintf(stderr, "usage: a.out num\n"); exit(1); }

/*
  floor = ;
*/


 if (atoi(argv[1]) == 0) {
    floor.push_back("aba");
    floor.push_back( "bbb");
    floor.push_back( "aba");
  }

 if (atoi(argv[1]) == 1) {
    floor.push_back("wbwbwbwb");
    floor.push_back( "bwbwbwbw");
    floor.push_back( "wbwbwbwb");
    floor.push_back( "bwbwbwbw");
    floor.push_back( "wbwbwbwb");
    floor.push_back( "bwbwbwbw");
    floor.push_back( "wbwbwbwb");
    floor.push_back( "bwbwbwbw");
  }

 if (atoi(argv[1]) == 2) {
    floor.push_back("zz");
    floor.push_back( "zz");
  }

 if (atoi(argv[1]) == 3) {
    floor.push_back("helloand");
    floor.push_back( "welcomet");
    floor.push_back( "osingler");
    floor.push_back( "oundmatc");
    floor.push_back( "hsixhund");
    floor.push_back( "redandsi");
    floor.push_back( "xtythree");
    floor.push_back( "goodluck");
  }

 if (atoi(argv[1]) == 4) {
    floor.push_back("jecjxsengslsmeijrmcx");
    floor.push_back( "tcfyhumjcvgkafhhffed");
    floor.push_back( "icmgxrlalmhnwwdhqerc");
    floor.push_back( "xzrhzbgjgabanfxgabed");
    floor.push_back( "fpcooilmwqixfagfojjq");
    floor.push_back( "xzrzztidmchxrvrsszii");
    floor.push_back( "swnwnrchxujxsknuqdkg");
    floor.push_back( "rnvzvcxrukeidojlakcy");
    floor.push_back( "kbagitjdrxawtnykrivw");
    floor.push_back( "towgkjctgelhpomvywyb");
    floor.push_back( "ucgqrhqntqvncargnhhv");
    floor.push_back( "mhvwsgvfqgfxktzobetn");
    floor.push_back( "fabxcmzbbyblxxmjcaib");
    floor.push_back( "wpiwnrdqdixharhjeqwt");
    floor.push_back( "xfgulejzvfgvkkuyngdn");
    floor.push_back( "kedsalkounuaudmyqggb");
    floor.push_back( "gvleogefcsxfkyiraabn");
    floor.push_back( "tssjsmhzozbcsqqbebqw");
    floor.push_back( "ksbfjoirwlmnoyyqpbvm");
    floor.push_back( "phzsdodppzfjjmzocnge");
  }

  retval = TheClass.minimumChanges(floor);
  cout << retval << endl;

  exit(0);
}