         uint16 bp_offset = ctx.cigar_event_read_coordinates[i];
         if (bp_offset == uint16(-1))
         {
-            printf("   - ");
+            printf("  - ");
         } else {
             printf("% 3d ", context->active_location_list[idx.read_start + bp_offset] ? 1 : 0);
         }

                // mark the read bp where a deletion begins
                if (!negative_strand)
                {
                    ctx.cigar.is_deletion[idx.read_start + current_bp_idx] = 1;
                } else {
                    ctx.cigar.is_deletion[idx.read_start + current_bp_idx + 1] = 1;
                }

                num_errors++;


                if (!negative_strand)
                {
                    ctx.cigar.is_insertion[idx.read_start + current_bp_idx - 1] = 1;
                } else {
                    ctx.cigar.is_insertion[idx.read_start + current_bp_idx + batch.cigars[event].len - 1] = 1;
                }
