int[][][] monthCount = new int[4][6][12];
int[][][] duration = new int[4][6][12];
int[][] maxSeperate = new int[4][6];
int[][] minSeperate = new int[4][6];
int[][] avgSeperate = new int[4][6];
int[][] sumYear = new int[4][6];
int[] maxCountByTest = new int[4];
int[] minAvgByTest = new int[4];
int[] maxAvgByTest = new int[4];
int maxCount,minCount;
int maxDuration,minDuration;
int minAvg;
int maxAvg;
float ratio;
void getData(){
  String singleline;
  BufferedReader reader;
  maxCount = maxDuration = MIN_INT;
  minCount = minDuration = MAX_INT;
  String[] filename = new String[4];
  filename[0] = "SAT.txt";
  filename[1] = "GRE.txt";
  filename[2] = "GMAT.txt";
  filename[3] = "LSAT.txt";
  for(int i=0;i<4;i++){
    reader = createReader(filename[i]);
    for(int j=0;j<6;j++){
      for(int k=0;k<12;k++){
        try {
          singleline = reader.readLine();
        }catch (IOException e) {
          e.printStackTrace();
          singleline = null;
        }
        if(singleline != null){
          String[] pieces = split(singleline, TAB);
          monthCount[i][j][k] = int(pieces[0]);
          duration[i][j][k] = int(pieces[1]);
        }
      }
      maxSeperate[i][j] = max(monthCount[i][j]);
      minSeperate[i][j] = min(monthCount[i][j]);
      sumYear[i][j] = sum(monthCount[i][j]);
      avgSeperate[i][j] = sumYear[i][j] / 12;
    }
    maxCountByTest[i] = max(maxSeperate[i]);
    minAvgByTest[i] = min(avgSeperate[i]);
    maxAvgByTest[i] = max(avgSeperate[i]);
  }
  maxCount = max(maxCountByTest);
  minAvg = min(minAvgByTest);
  maxAvg = max(maxAvgByTest);
}
int sum(int[] arr){
  int iter = arr.length;
  int count = 0;
  for(int i = 0;i < iter;i++)
    count += arr[i];
  return count;
}
/*int average(int[] arr){
  int iter = arr.length;
  int count = 0;
  for(int i = 0;i < iter;i++)
    count += arr[i];
  return count / iter;
}*/