import java.util.*;
import java.lang.*;
import java.io.*;
class Demo {
public static void main
(String args
[]) { int i, j;
int m[][] = {{ 1, 2, 3, 4 },
{ 5, 6, 7, 8 },
{ 9, 10, 11, 12 },
{ 13, 14, 15, 16 }
};
for(i=0; i<4; i++) {
for(j=0; j<4; j++){
System.
out.
print(m
[i
][j
] + " "); }
}
}
}
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