Variables fileName, data$1,$ data$2,$ data$3,$ and data$4,$ are read from input. Perform the following tasks:

Open fileName as the output file.

If the output file fails to open, then use cout to output fileName followed by $"$: error opening file" and a newline. Then, terminate the program with $1$ as the return value.

Otherwise, for integers data$1,$ data$2,$ data$3,$ and data$4,$ write $"-"$ followed by the integer and a newline to the output file.

Close the file.