{"trustable":false,"sections":[{"title":"","value":{"format":"PLAIN","content":"给定两个字符串s和t,你必须确定s是否是t的子序列,也就是说,如果你可以从t中删除字符,那么剩下的字符串就是s。"}},{"title":"Input","value":{"format":"PLAIN","content":"多组输入,每组一行包含两个字符串s和t,两字符串之间用空格隔开。"}},{"title":"Output","value":{"format":"PLAIN","content":"对于每组输入,如果s是t的子序列,输出Yes,反之输出No"}},{"title":"Sample Input","value":{"format":"PLAIN","content":"sequence subsequence\nperson compression\nVERDI vivaVittorioEmanueleReDiItalia\ncaseDoesMatter CaseDoesMatter"}},{"title":"Sample Output","value":{"format":"PLAIN","content":"Yes\nNo\nYes\nNo"}}]}