An interior angle x and its explement y were turned to close the horizon. Each angle was observed once direct and once reversed using the repetition method. Starting with an initial back sight setting of 0o 00' 00'' for each angle, the readings after the first and second turnings of angle x were 49o 36' 24'' and 99o 13' 00'' and the readings after the first and second turnings of angle y were 310o 23' 28'' and 260o 46' 56''. Calculate each angle and the horizon misclosure.