G => 1-30
F => 30-60
E => 60-120
D => 120-240
C => 240-440
B => 440-1300
A => 1300-3000
S => 3000-6000
SS => 6000-12000
SSS => 12000+
G => 1-30
F => 30-60
E => 60-120
D => 120-240
C => 240-440
B => 440-1300
A => 1300-3000
S => 3000-6000
SS => 6000-12000
SSS => 12000+