Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a83670a3ed7e79529b5d8e5b0865528ed46c31f91f31bc88dc985b4cca5c417f:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^