0,0,
1,0,
2,0,
3,0,
0,1,
1,1,
2,1,
3,1,
0,2,
1,2,
2,2,
3,2,
0,3,
1,3,
2,3,
3,3,
0,4,
1,4,
2,4,
3,4,
0,5,
1,5,
2,5,
3,5,
0,6,
1,6,
2,6,
3,6,
0,7,
1,7,
2,7,
3,7,
0,8,
1,8,
2,8,
3,8,
0,9,
1,9,
2,9,
3,9,
0,10,
1,10,
2,10,
3,10,
0,11,
1,11,
2,11,
3,11,
0,12,
1,12,
2,12,
3,12,
0,13,
1,13,
2,13,
3,13,
0,14,
1,14,
2,14,
3,14,
0,15,
1,15,
2,15,
3,15,
0,16,
1,16,
2,16,
3,16,
0,17,
1,17,
2,17,
3,17,
0,18,
1,18,
2,18,
3,18,
0,19,
1,19,
2,19,
3,19,
0,20,
1,20,
2,20,
3,20,
0,21,
1,21,
2,21,
3,21,
0,22,
1,22,
2,22,
3,22,
0,23,
1,23,
2,23,
3,23,
0,24,
1,24,
2,24,
3,24,
0,25,
1,25,
2,25,
3,25,
0,26,
1,26,
2,26,
3,26,
0,27,
1,27,
2,27,
3,27,
0,28,
1,28,
2,28,
3,28,
0,29,
1,29,
2,29,
3,29,
0,30,
1,30,
2,30,
3,30,
0,31,
1,31,
2,31,
3,31,
