Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> cef03c44d26db41817830516b0cd7a7d38892bbc2f0a238c874cbb5fa5fc0855:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^