#version 310 es

layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
void main() {
  {
    int i = 0;
    while(true) {
      if ((i < 2)) {
      } else {
        break;
      }
      switch(i) {
        case 0:
        {
          {
            int j = 0;
            while(true) {
              if ((j < 2)) {
              } else {
                break;
              }
              switch(j) {
                case 0:
                {
                  {
                    j = (j + 2);
                  }
                  continue;
                }
                default:
                {
                  break;
                }
              }
              {
                j = (j + 2);
              }
              continue;
            }
          }
          {
            i = (i + 2);
          }
          continue;
        }
        default:
        {
          break;
        }
      }
      {
        i = (i + 2);
      }
      continue;
    }
  }
}
