Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 58f7221143543c371a5a53c386f5ac9567cf7737abad3ae5ba4aeb20facb07ce:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^