Additional Resources
100 = E+ 90 - 99 = E80 - 89 = S+70 - 79 = S60 - 69 = N
0 - 59 = U
90 - 100= A87 - 89 = B+80 - 86 = B77 - 79 = C+70 - 76 = C67 - 69 = D+60 - 67 = D0 - 59 = F