At which step?
If you're doing this after CO+EO, check which of the two sides look like normal PLLs. If both or neither are normal PLLs, it's even parity; if exactly one side is a normal PLL, it's odd parity. (This works regardless of whether CP is solved.)
If you're doing it with cubeshape, refer to any cubeshape parity tutorial. (There are a few different parity tracing methods; idk which ones people use these days.)