Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> cf9d573adf7cf60c39fcd5c26bf230790c4810dcc1ff407854ea94bc29919423:14:28
   |
14 |                             let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^