Testing PRINT USING
===================

Test 1: Basic number formatting
 42
12345

Test 2: Decimal formatting
 3.14
123.46

Test 3: Currency formatting
$ 99.95
$1234.56

Test 4: Comma separators
1,234
12,345.67

Test 5: Sign formatting
 +42
 -42

Test 6: String first character (!)
H
Name: W

Test 7: Fixed-width strings
HELLO 
TEST

Test 8: Multiple values
 10  20  30
Name: Alice    Age: 25

Test 9: Exponential notation
 1.23E+04
 1.23E-03

Test 10: Overflow handling
%12345
%123.46

PRINT USING tests complete!

