for(int i=0;i
scanf("%d%d",&w.B[i][0],&w.B[i][1]);
}
scanf("%d",&K);
for(int i=0;i
int row,col;
scanf("%d%d",&row,&col);
map[row][col]=1;
}
w.step=0;
printf("Case %d: %d\n",Case++,bfs());
}
return 0;
/*
4 4 4
3 2
3 1
2 1
2 2
6
1 2
1 3
1 4
2 3
2 4
4 1
*/