n = int(input())
s = list(input())
x = ""
y = ""

if len(s) % 2 == 0:
    print('Yes')
    for i in range(len(s)):
        if i % 2 == 0:
            x += s[i]
        elif i % 2 != 0:
            y += s[i]
    print(x,y)
else:
    print('No')