length = int(input())
word = list(input())
a = ""
b = ""

if length % 2 == 0:
    print("Yes")
    for i in range(len(word)):
        if i % 2 ==0:
            a += word[i]
        else:
            b += word[i]
else:
    print("No")
    exit()

print(a,b)