text = [198,232,816,200,1536,300,6144,984,51200,570,92160,
1200,565248,756,1474560,800,6291456,1782,65536000]
flag = ''
for i in range(1,len(text)+1):
    if i%2!=0:
        flag+=chr(text[i-1]>>i)
    else:
        flag+=chr(text[i-1]//i)
print(flag)