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G:=SmallGroup(16,6);;
K:=MaximalSubgroups(G)[2];;
f:=GroupHomomorphismByFunction(K,G,x->x);;
L:=InducedSteenrodHomomorphisms(f,8);;
HG:=L[1];;
HK:=L[2];;
iota:=L[3];;
gens:=ModPRingGenerators(HG);
Print(List(gens,HG!.degree),"\n");
w:=Sq(HK,2,Image(iota[5],gens[5]));;
P:=List(PreImagesElm(iota[7],w), x->x);;
PrintAlgebraWordAsPolynomial(HG,P[1]); Print("\n");
PrintAlgebraWordAsPolynomial(HG,P[2]); Print("\n");
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