Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> af1a5acc4cfe47453fac455820136d5a2d7f62a418531d6d65a9530f77afe40d:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^