1 use Data::Dumper;
  2 use feature 'say';
String found where operator expected at - line 2, near "use feature 'say'"
        (Do you need to predeclare use?)
  3
^Z
"use" not allowed in expression at - line 1, near "1 "
syntax error at - line 1, near "1 use Data::Dumper"
"use" not allowed in expression at - line 2, near "2 "
Execution of - aborted due to compilation errors.