如何在R中的列表中提取相同的元素

Question

有三个列表：

list1 <- c("123","124","126","131")
list2 <- c("111","123","126","133","159")
list3 <- c("119","120","123","124","126","158")

在这里，我必须提取所有列表中包含的元素。在这种情况下，新列表（例如mylist）应包含"123"和"126"。怎么能在R？

中做到这一点