[{"sectionTitle":"题目描述","type":"Text","text":"原题来自：USACO 2015 Feb. Silver\r\n\r\n给出两个字符串 $S$ 和 $T$，每次从前往后找到 $S$ 的一个子串 $A=T$ 并将其删除，空缺位依次向前补齐，重复上述操作多次，直到 $S$ 串中不含 $T$ 串。输出最终的 $S$ 串。","subType":"markdown"},{"sectionTitle":"输入格式","type":"Text","text":"第一行包含一个字符串 $S$，第二行包含一个字符串 $T$。","subType":"markdown"},{"sectionTitle":"输出格式","type":"Text","text":"输出处理后的 $S$ 串。","subType":"markdown"},{"sectionTitle":"样例","type":"Sample","text":"","subType":"markdown","payload":["whatthemomooofun\nmoo","whatthefun"]},{"sectionTitle":"数据范围与提示","type":"Text","text":"对于全部数据，$1\\le |T|\\le |S|\\le 10^6$，保证字符串中只出现小写字母。","subType":"markdown"}]