Pattern in the picture


U = Up clockwise        U' = Up counterclockwise
D = Down clockwise    D' = Down counterclockwise
F = Front clockwise     F' = Front counterclockwise
B = Back clockwise     B' = Back counterclockwise
L = Left clockwise        L' = Left counterclockwise
R = Right clockwise     R' = Right counterclockwise

E = Equator (the horizontal Layer between D and U)
E = D direction            E' = U direction
M = Middle (the Layer between L and R)
M = L direction             M' = R direction
S = Standing (the Layer between F and B)
S = F direction             S' = B direction

u = U and E
d = D and E
f = F and S
b = B and S
l = L and M
r = R and M


X = R whole Cube X' = L whole Cube
Y = U whole Cube Y' = U' whole Cube
Z = F whole Cube Z' = F' whole Cube

2 = two turns (180°)

M2 E' M2 E