ajut la ex 3 va rog foarte frumos

1749i Hr= sec 18 i. Hr, mil 2i. Hr
73 i. Hr= sec 1 i. Hr, mil 1 i. Hr
106= sec 2, mil 1
1247= sec 13, mil 2
1789= sec 18, mil 2
1914= sec 20, mil 2
2017= sec 21, mil 3