Driver Program
public static void Main ( ) { int [ , ] a = { { 1 , 2 , 3 } , { 4 , 5 , 6 } , { 7 , 8 , 9 } } ; Console . WriteLine ( getGreatestSum ( a ) ) ; int [ , ] b = { { 4 , 5 , 6 } , { 4 , 5 , 6 } , { 4 , 5 , 6 } } ; Console . WriteLine ( getGreatestSum ( b ) ) ; } }