magic square 13

 Forty five of the numbers from 1 to 81 have been placed in the 9x9

  grid given below.

	56		71		36		77
58	14	51		29		80	43	9
	52		31		24		2
65		30		81		50		13
	33		74	37	3		18
34		26		6		11		57
	75		54		16		22
78	40	5		12		27	35	70
	8		15		59		66

 

                                                                 MAGIC SQUARE 9x9

Place the remaining numbers in the blank cells in such a way that sum of nine numbers in every horizontal row,every vertical column,every 3x3 box and each corner to corner diagonal is 369.