def query(l,r,x) :
    cnt=0
    while l<=r :
        cnt+=1
        mid=(l+r)>>1
        if a[mid]==x:return cnt
        if f:
            if a[mid]%2==1 or a[mid]<x:r=mid-1
            else:l=mid+1
        else: 
            if a[mid]%2==0 or a[mid]>x:l=mid+1
            else:r=mid-1
    return -1
a=list(map(int, input().split()))
key=int(input())
div=0
for i in range(len(a)):
    if a[i]%2==1:div=i;break
cnt=0
f=key%2|1
cnt=query(0,len(a)-1,key)
if cnt==-1:
    print("NO")
else:
    print("YES\n"+str(cnt))