GREECE-YUGOSLAVIA: Rhodes, 3 – Yugoslav President Field Marshal Josip Broz Tito and his delegation will end their official visit tomorrow and leave for Thessaloniki by cruise ship. Tito will return to Belgrade from there by train. His talks with Prime Minister Constantine Karamanlis, held in an atmosphere of great sincerity and warm friendship, ended this evening with a dinner on board Tito’s ship. A joint communique emphasized the close friendship between the two countries and their governments’ resolve to enhance cooperation between the two countries. It also announced the imminent signing of a number of agreements. TWELFTH CURTAIN: A new theater company is to be founded in mid-April, called Twelfth Curtain, which is to be set up by a group of writers, directors and famous Athenian actors. They will be producing new Greek plays for a limited number of performances. Some of the actors participating in the group are Malena Anousaki, Yiannis Argyris, Yiannis Voyiatzis, Stefanos Linaios, Thanasis Livaditis, Vangelis Protopapas, Fivos Taxiarchis, Petros Fyssoun and Katy Chronopoulou.