 Complete the following phrase:  When the International Olympic Committee awarded the 1956 Winter Olympics to Cortina, the Italian National Olympic Committee CONI took over all operations and improvement of the track at considerable expense. Following the 1952 Winter Olympics in Oslo, track officials added large scoreboards, and electronic timing and scoring. The track used for the 1956 Winter Olympics was 1720 metres long with 16 turns and an elevation drop of 152 metres. When a bobsleigh track was not built for the 1960 Winter Olympics in Squaw Valley, California in the United States, the track in Cortina was used to host the 