It may be useful to read https://www.cancer.org/cancer/types/colon-rectal-cancer/detection-diagnosis-staging/staged.html

But discuss with your doctor as different institutions interpret differently, and for example depends on the number of lymph nodes examined (more is better). Also the "M" number is missing.

In general this would mean Stage 3 but again this is just a number and the treatment regimen and whether you have a negative ctDNA test post surgery mean more related to the relative risk and 5 year survival