The sign "Parking on sidewalks completely to the right at the beginning" indicates that it is permissible to park on the sidewalk, but only on the right side and only at the beginning of a stretch of sidewalk. This usually means that vehicles must not block pedestrian pathways and should be parked in a designated manner that allows pedestrians to walk freely and safely.

It's important to follow any additional rules or limitations that may be indicated in conjunction with this sign, such as time restrictions or specific conditions under which parking is allowed. Always ensure that your vehicle does not obstruct traffic or pedestrian movement when parking in these areas.