Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 19e7d60e75ca41ccf5cff42dd7c135354738cdfdc99adda544f1de71ba9585f4:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^