print(''.join([chr(144 + round(sum(map(lambda q: i ** q[0] * q[1][0] / q[1][1] * [-1, +1][q[0] % 2], enumerate([[72, 1], [1988923, 9240], [36980539, 50400], [23678549, 20160], [120102721, 120960], [355072981, 725760], [8572133, 57600], [434099, 15120], [35417, 10080], [63859, 241920], [13421, 1209600], [797, 3991680]]))))) for i in range(12)]))