Can you type in the correct numbers such that every row, column and diagonal add up to make the (decimal) number 30? Use digits 0 to 9, and letters for 10 to 15: A=10, B=11, C=12. D=13, E=14, F=15
Every row (4 horizontal squares), column (4 vertical squares) and diagonal of length 4 (4 diagonal squares) add up to the same total (the "magic total").
Identify the magic total and hence fill in the remaining boxes to complete the magic square.
Grid quizzes only allow a single character in each cell. For that reason, use hexadecimal digits, i.e.
* digits 0 to 9 are used as normal to represent '0' up to '9'
* use letter 'A' in place of number '10'
* use letter 'B' in place of number '11'
* use letter 'C' in place of number '12'
* use letter 'D' in place of number '13'
* use letter 'E' in place of number '14'
* use letter 'F' in place of number '15'
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