l: [99, 300, 310, 1501, 12609, 512609, 43112609, 77000112609, 2000000000100,
999999999999999999, 0, -99, -1501, -77000112609, -123456789987654321];
map( lambda([n], printf(true, "~20d ~r~%", n, n)), l)$