Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a0ba9105032c4125a245c0d9033574ff40a89fc3c22e68e86f11b1dc6aec996e:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^