row_ops=[1, 2, 3, 3, 3, 4, 5, 5] col_ops=[0, 0, 0, 1, 2, 2, 2, 3] op=Operation(is_row=True, index=0, color=5), col_ops[i]=0 op=Operation(is_row=True, index=4, color=8), col_ops[i]=0 op=Operation(is_row=True, index=6, color=5), col_ops[i]=0 op=Operation(is_row=False, index=8, color=4), row_ops[i]=3 op=Operation(is_row=False, index=3, color=9), row_ops[i]=3 op=Operation(is_row=True, index=3, color=3), col_ops[i]=2 op=Operation(is_row=True, index=9, color=1), col_ops[i]=2 op=Operation(is_row=False, index=0, color=1), row_ops[i]=5 0 13 0 8 7 20 0 0 10 7