Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> e89598382ced75051676b9f1932bff7205d2f3dd7d2b4ae4a07b8be1f21c7aa1:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^