Why do I keep getting an error - "Unexpected '}' token .

#b) Using the breaks option of the histogram, show the histogram and the custom output as shown below so that students in the range (70,90] get an A grade, (50,70] get a B grade, and (30-50] get a C grade. The code for the following output should not refer to the individual scores.

scores

the output should be (See screenshot)

3 students in range (35,40] 4 students in range (40,45] 10 students in range (45,50) 13 students in range (50,55] 17 students in range (55,60] 27 students in range (60,65] 13 students in range (65,70] 8 students in range (70,75) 3 students in range (75,80] 2 students in range (80,85]