Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ed2f2a4c979189e0accae6db7458ae3f4032bf415567976e4c2c749ec67fa29c:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^