"Source: Text/Group/GrpFP.text";
"Line: 5060";
"Date: Thu Sep 25 14:47:45 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Group/GrpFP.text, line: 5060
// Example: H80E39 ()
print "Example: H80E39";
ei := GetEchoInput();
SetEchoInput(true);
G<a,b> := DihedralFPGroup(0);
H := sub< G | a*b, a^10 >;
DoubleCosets(G, H, H);
SetEchoInput(ei);
