Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> c4334d2e8bae907c212fb09318c04964a2d3a2c7644b2b18123fda45f06a2159:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^