Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 939e97454256a9cd84b82b1dc5f2df3c6d291374383196ae8ccec5f4892eba16:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^