Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 3c40db9232ac7ce630f1ae7aa60a1b19f5a9b77916dbff256e30091badb1aa05:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^