Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 031a9333a5b9e7f1c81b2e66d54ad59882083ae7f9743f49e9e73402b2376a02:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^