Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> f0e4019b0368747e8b9dfed500832c0bce76186742abe3a3e5a724d3ba78e939:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^