Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 727fbccce61b653ffb11a1846a63aa8536db763c6aea2ece2b0b25cb48e7edbf:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^