1### Compilation failed: 2 3error: 1: unknown identifier 'x' 4error: 2: unknown identifier 'x' 5error: 3: unknown identifier 'x' 6error: 4: unknown identifier 'x' 7error: 4: unknown identifier 'z' 8error: 6: unknown identifier 'f' 9error: 6: unknown identifier 'h' 10error: 7: unknown identifier 'j' 118 errors 12