// lines: split each line of the source file
// into separate strings
String lines[] = loadStrings("num.txt");
println("there are " + lines.length + " lines");

// nums: move each of the values on the 
// line into its own string
String nums[][] = new String[lines.length][2];

for (int i=0; i < lines.length; i++) {
  nums[i] = split(lines[i], " ");
}

// values: convert each string in nums
// into an integer in values
int values[][] = new int[lines.length][2];

for (int i=0; i<lines.length; i++) {
  values[i][0] = int(nums[i][0]);
  values[i][1] = int(nums[i][1]);
}
// print usable data set
for (int i=0; i < lines.length; i++) {
  println(values[i][0]);
  println(values[i][1]);
}