Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 3a0dd81f42b6b1f382f509bec1a1bd7ae83be16dfba973df7d367f4cb115a38b:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^