Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> c750151155c37f65584912fd3a9a9fb98aca04c844a7d9139d7e94b25c089eff:14:32
   |
14 |                                 let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^