> #include <iostream>
> #include<string>
> #include<string.h>
> #include<stdio.h>
> using namespace std;
> 
> int main()
> {
>     //freopen("D:\\CPPProgram\\ACM\\in.txt", "r", stdin);
>     char a[100100], b[100100];
>     while(~scanf("%s %s", &a, &b))
>     {
>         int len1, len2;
>         len1 = strlen(a);
>         len2 = strlen(b);
>         if(len1 > len2)
>         {
>             printf("No\n");
>         }
>         else if(len1 == len2)
>         {
>             if(strcmp(a, b) == 0)
>                 printf("Yes\n");
>             else
>                 printf("No\n");
>         }
>         else
>         {
>             int start = 0;
>             int cnt = 0;
>             int ju;
>             for(int i=0; i<len1; i++)
>             {
>                 ju = 0;
>                 for(int j=start; j<len2; j++)
>                 {
>                     if(a[i] == b[j])
>                     {
>                         start = j+1;
>                         cnt ++;
>                         ju = 1;
>                         break;
>                     }
>                 }
>                 if(ju == 0)
>                 {
>                     printf("No\n");
>                     break;
>                 }
>             }
>             if(cnt == len1)
>                 printf("Yes\n");
>         }
>     }
>     return 0;
> }
>