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  1. main = putStr$(['A'..'Y']>>= \x->x:", "++['\n'|elem x"GPSV"])++"Z."
Success #stdin #stdout 0s 4700KB
stdin
Standard input is empty
stdout
A, B, C, D, E, F, G, 
H, I, J, K, L, M, N, O, P, 
Q, R, S, 
T, U, V, 
W, X, Y, Z.