input=open("input.txt",'r')
output=open("output.txt",'w')
q=input.readline()
q=int(q)
d=set()
s=str()
for i in range(q):
    num=0
    s=input.readline()
    if s[1]=="?":
        while s not in d:
            if num<10:
                s=s[0]+"0"+str(num)+s[3:]
            else:
                s=s[0]+str(num)+s[3:]
            if s not in d:
                d.add(s)
                break
            num += 1
            if num==100:
                output.write("NO\n")
                exit()
    elif s in d :
        output.write("NO\n")
        exit()
    else:
        d.add(s)
    s=str()
output.write("YES\n")
for i in d:
    output.write(i)