Apologies if this has been asked and answered before - my search of the forum returned zero results.
Could someone please explain to me what the letters before each of the numbers mean please? I know F, J and Y but I'm clueless, and interested to know to what the others are.
F2 A0 J0 C0 I0 O0 P0 Y5 E5 R5 W5 M0 B0 U0 K0 H0 Q0 L0 T0 V0 X0
Thank you.