#include<iostream>using namespace std;char s[100001],t[100001];int main(){    int ls,le;    int ts,te;    int l1,l2;    while(scanf("%s%s",s,t)!=EOF)    {        l1=strlen(s);        l2=strlen(t);        if(l2<l1)        {            printf("No\n");            continue;        }        ls=0;le=l1-1;        ts=0;te=l2-1;        while(ts<=te)        {            if(s[ls]==t[ts])                ls++,ts++;            else            ts++;            if(s[le]==t[te])                le--,te--;            else te--;        }        if(ls>le)            printf("Yes\n");        else printf("No\n");    }    return 0;}