Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 3e628cfc781ace4a874123b5c8400faaa541ec33189ed9a4468d492b6b4d12e0:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^