# 偶数ならYes..?
n = int(input())
s = input()
if n%2: exit(print('No'))
print('Yes')
null = []
acht = []
for i in range(n):
    if i%2 == 0:
        null.append(s[i])
    else:
        acht.append(s[i])
print("".join(null),"".join(acht))