Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 2f015bd6eb414e81019b166e1c5cf19e3083caae17f12e2df7186eff076de076:14:32
   |
14 |                                 let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^