#include<bits/stdc++.h>
using namespace std;
const int N=1e5+5;
char s[N],t[N];
int n,m,A,B;
int L[N],R[N];
vector<int> Lv,Rv,vec;
int main() {
	scanf("%s%s",s+1,t+1);s[0]=s[1],s[n+1]=s[n];
	n=strlen(s+1);m=strlen(t+1);	
	for(int i=1;i<=n;i++) {
		L[i]=L[i-1];
		if(t[L[i]+1]==s[i]) {
			L[i]++;
			Lv.push_back(i);
		}
	}
	for(int i=n;i>=1;i--) {
		R[i]=R[i+1];
		if(s[i]!=s[i-1]&&s[i]==t[m-R[i]]) {
			R[i]++;
			Rv.push_back(i);
		} else if(s[i]!=s[i+1]&&t[m-R[i]]==s[i]&&Rv.back()!=i+1) {
			R[i]++;
			Rv.push_back(i);
		}
	}
	for(int i=0;i<n;i++)
		if(L[i]+R[i+1]==m) {
			puts("YES");
			for(auto x:Lv) 
				if(x<=i) vec.push_back(x);
			for(auto x:Rv) 
				if(x>i) vec.push_back(x);
			sort(vec.begin(),vec.end());
			for(auto x:vec) printf("%d ",x);
			return 0;
		}
	puts("NO");
}