"Source: Text/Aggregates/Tuple.text";
"Line: 141";
"Date: Wed Mar 24 09:34:33 2021";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Aggregates/Tuple.text, line: 141
// Example: H12E1 ()
print "Example: H12E1";
ei := GetEchoInput();
SetEchoInput(true);
C := car< RationalField(), Integers() >;
C;
SetEchoInput(ei);
