Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 920f8727cbacb019aa91fefe72a900df00ae8445c8a71161d0520a8e85afc5c3:14:32
   |
14 |                                 let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^