Can someone help me solve for the blanks? I'm not sure the pattern and how I'm supposed to figure out what goes in the blanks

Trace the values of this code. If a variable is not yet defined, put an "X" (without quotes). grades [10, 28] total = e for grade in grades: adjusted = grade + 1e total = total + adjusted step line adjusted total grades 10,20] [10,20] grade [10,20] 10,20] 20 10,20] [10,20] 10,20] 10,20] 50