Pass parameter in soap request then loop, SoapUI Free + Groovy

Hi. I'm new to this software, and trying to explore the cabapilities before I can cascade this to my fellow QAs. Here's what I want to achieve, I'm trying to upload a csv file, then read the values, pass the parameters in the test request(variable: addend1 and addend2), log the result the result then loop until the cell is empty.

Thanks!