| 1 | A | B | C | D | E | F | G | H | I | J | K |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 2 | second sources from europe and eastern bloc |  |  |  |  |  |  |  |  |  |  |
| 3 | none | soviet union |  | czechoslovakia |  |  | poland |  |  | east germany |  |
| 4 | none | 5400 | 7400 | 5400 | 7400 | 8400 | 5400 | 6400 | 7400 | 7400 | 8400 |
| 5 | 74 | 133 | к155 | mh54 | mh74 | mh84 | uca54 | uca64 | ucy74 | d1 | e1 |
| 6 | 74l | 134 | кр134 | none | none | none | none | none | none | none | none |
| 7 | 74h | 130 | к131 | none | none | none | none | uca64h | ucy74h | d2 | e2 |
| 8 | 74s | 530 | кр531 | mh54s | mh74s | mh84s | none | none | ucy74s | ds | none |
| 9 | 74ls | 533 | к555 | none | none | none | none | none | ucy74ls | dl | none |
| 10 | 74as | 1530 | кр1530 | none | none | none | none | none | none | none | none |
| 11 | 74als | 1533 | кр1533 | mh54als | mh74als | none | none | none | none | none | none |
| 12 | 74f | 1531 | кр1531 | none | none | none | none | none | none | none | none |
| 13 | 74hc | 1564 | кр1564 | none | none | none | none | none | none | none | none |
| 14 | 74hct | none | none | none | none | none | none | none | none | u74hct | none |
| 15 | 74ac | 1554 | кр1554 | none | none | none | none | none | none | none | none |
| 16 | 74act | 1594 | кр1594 | none | none | none | none | none | none | none | none |
| 17 | 74lvc | 5574 | none | none | none | none | none | none | none | none | none |
| 18 | 74vhc | 5584 | none | none | none | none | none | none | none | none | none |

Question: which country used uca for the 5400 and 6400 series and ucy for the 7400 series.
Answer: poland