input = read_url("https://shufengdong.github.io/sparrowzz/tetests/input2.csv");
a = [[0.0, 0.], [0, 0.0]];
b = 1;
while 1 {
   if b > 10 {
   	break;
   }
   a = a + [[1.0, 0.], [0, 1.0]];
   b = b + 1;
}
info(input);
return a;
