n = int(input())
s = input()
if n % 2 != 0:
    print("No")
    exit()
nauc, lhlt = "", ""
for i in range(len(s)):
    if i % 2 == 0:
        nauc += s[i]
    else:
        lhlt += s[i]
print("Yes")
print(nauc, lhlt, sep=" ")