N11

s = ''
for i in range(85):
    s += '1'

k = 0
while s.count('11111') > 0:
    #s = s.replace('111', '2')
    #s = s.replace('222', '1')
    l = len(s)
    for i in range(l - 3):
        if s[i:i+3] == '111':
            s = s[:i] + '2' + s[i+3::]
            break
    l -= 2
    for i in range(l - 3):
        if s[i:i+3] == '222':
            s = s[:i] + '1' + s[i+3::]
            break
    #print(s)
    #print()
    #k += 1
    #if k > 10:
        #break

print(s)