//import isprime
print 1, chr$(9), 2, chr$(9), 2
sum = 2
n = 1
for i = 3 to 999 step 2
    if isPrime(i) then
        sum = sum + i
        n = n + 1
        if isPrime(sum)  print n, chr$(9), i, chr$(9), sum
    fi
next i
end