(1) >mode(Lst) [1] “list” >length(Lst) [2] 3

(2) Lst2 <- as.character(Lst) >Lst2 [1] “Fujii” ”21” ”25,Feb”

(3) e <- character e[5]=“Fu” e[10]=“ji” e[15]=“i” e <- e[5 * 1:3]

> e [1] “Fu” “ji” “i”