"Source: Text/Group/GrpASim.text";
"Line: 4253";
"Date: Wed May 31 07:54:47 2023";
"Main: Thu May 25 10:02:38 2023";
// original file: Text/Group/GrpASim.text, line: 4253
// Example: H71E23 ()
print "Example: H71E23";
ei := GetEchoInput();
SetEchoInput(true);
G :=  
MatrixGroup<7, GF(11) |
[ 9, 1, 1, 3, 1, 3, 3, 1, 1, 3, 1, 3, 3, 9, 1, 3, 1, 3, 3, 9, 1, 3, 1, 3,
 3, 9, 1, 1, 1, 3, 3, 9, 1, 1, 3, 3, 3, 9, 1, 1, 3, 1, 3, 9, 1, 1, 3, 1, 3 ],
[ 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 10, 0, 0, 0, 0, 0, 0,
0, 1, 0, 0, 0, 0, 0, 0, 0, 10, 0, 0, 0, 0, 0, 0, 0, 10, 10, 0, 0, 0, 0, 0,0] >;
flag, S := StandardGenerators (G, "J1");
flag;
assert $1;
StandardPresentation (G, "J1": Generators := S);
assert $1;
flag, M:= MaximalSubgroups (G, "J1": Generators := S);
#M;
assert $1 eq 7;
M[4];
SetEchoInput(ei);
