#include <iostream> using namespace std; bool judge(char *a, char *b) { int i,j,mark = 0,a_len = strlen(a),b_len = strlen(b); bool flag = true; for(i = 0; i < a_len && flag; i++ ) { flag = false; for( j = mark; j < b_len; j++ ) { if( b[j] == a[i] ) if( b_len-j >= a_len-i){ mark = j+1; flag = true; break; } } } if(flag) return true; else return false; } int main() { char s[2][100002]; while((scanf("%s%s",s[0],s[1])) != EOF) { if(judge(s[0],s[1])) printf("Yes\n"); else printf("No\n"); } return 0; }