Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 8434b2770ce5d96e4459bc02b9959ea84d79d6f9685ba7b74d6913f9fce6afab:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^