how to make hash?& append element, if i want following condition

i did it, but using hash package ,i got error like

hash1 <- new.env() 
hash1$A <- c(1.2, 3.4, 4.5) 
hash1$A

[1] 1.2 3.4 4.5

h<-hash(keys=c("A","B"),values=c(hash1$A,hash1$A)  )

Error in .set(h, ...) : Keys of length 2 do not match values of length 6

how should i proceed


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