println( 0 );
println( 0.0 );
println( 123.456 );
println( 10.0 + 5.0 );
println( 10.0 - 5.0 );
println( 10.0 * 5.0 );
println( 10.0 / 5.0 );
println( - 5.0 );
println( 10.0 > 5.0 );
