 Complete the following phrase:  The short program, along with the free skating program, is a segment of single skating, pair skating, and synchronized skating in international competitions, including all ISU championships, the Olympic Winter Games, the Winter Youth Games, qualifying competitions for the Olympic Winter Games, and ISU Grand Prix events for both junior and senior-level skaters including the finals. It has been previously called the original or technical program. The short program was added to single skating in 1973, which created a three-part competition until compulsory figures were eliminated in 1990. The short program for pair skating was introduced at the 1963 European Championships, the 