Solution ===================

%solution%

Your Attempt ===================

%attempt%

Difference ===================

%diff%

• Did you type the name of the file correctly? You can check by running 'ls %filename%'. If you see 'ls: cannot access %filename%: No such file or directory,' then perhaps the file doesn't exist, or has a different name, or is in a different directory.
• Make sure you didn't omit any parens, or the compiler will not be able to parse it.
• Make sure you don't have any typos in the string itself.