n=readline(prompt="please enter any integer value:")
n=as.integer(n)
if(n >= 2){
    x=seq(2,n)
    prime_nums=c()
    for(i in seq(2, n)){
        if(any (x == i)){
            prime_nums=c(prime_nums, i)
            x=c(x[(x%%i)!=0], i)
        }
    }
    print(prime_nums)
}
else
{
    print("Input number should be at least 2.")
}