Sending values including timestamps, external file

input.log:

hostname item1 1350999262 912.00
hostname item2 1350999263 234.00
hostname item1 1350999264 671.00
hostname item2 1350999265 219.00
hostname item1 1350999266 523.00
hostname item2 1350999267 231.00
hostname item1 1350999268 532.00
hostname item1 1350999269 493.00
hostname item2 1350999270 184.00

send:

zabbix_sender -z 127.0.0.1 -T -i ~/input.log