"Source: Text/Basics/RngIntRes.text";
"Line: 938";
"Date: Thu Sep 25 14:47:46 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Basics/RngIntRes.text, line: 938
// Example: H20E5 ()
print "Example: H20E5";
ei := GetEchoInput();
SetEchoInput(true);
m := 735;
R := ResidueClassRing(m);
U, psi := UnitGroup(R);
U;
#U;
assert $1 eq 336;
EulerPhi(735);
assert $1 eq 336;
gens := [ psi(U.i) : i in [1..3] ]; gens;
[ Order(x) : x in gens ]; 
SetEchoInput(ei);
