from sys import stdin,setrecursionlimit#,set_int_max_str_digits #import pypyjit #pypyjit.set_param('max_unroll_recursion=-1') setrecursionlimit(20000000) # これこどふぉだと無理 #set_int_max_str_digits(200010) mod = 998244353 ii = lambda :int(stdin.readline()) mi = lambda :map(int,stdin.readline().split()) li = lambda :list(mi()) gmi = lambda :map(lambda x: int(x) - 1, stdin.readline().split()) gi = lambda :list(map(lambda x: 0 if x == "." else 1,input())) # グリッド入力受け取り py = lambda :print("Yes") pn = lambda :print("No") pf = lambda :print("First") ps = lambda :print("Second") vec = [(1,0),(-1,0),(0,-1),(0,1)] vec1 = [(1,0),(1,1),(0,1),(-1,1),(-1,0),(-1,-1),(0,-1),(1,-1)] #8方向 inf = 10**18 n = ii() s = input() if n % 2: pn() exit() py() a = [] b = [] for i,x in enumerate(s): if i % 2: b.append(x) else: a.append(x) print("".join(a),"".join(b))