Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Camera | Filter | Wavelength | Total exposure time | Exposures |
| --- | --- | --- | --- | --- |
| WFPC2 | F300W | 300nm (U-band) | 140,400s | 106.0 |
| WFPC2 | F450W | 450nm (B-band) | 103,500s | 67.0 |
| WFPC2 | F606W | 606nm (V-band) | 99,300s | 53.0 |
| WFPC2 | F814W | 814nm (I-band) | 113,900s | 57.0 |
| NICMOS NIC3 | F110W | 110nm (J-band) | 162,600s | 142.0 |
| NICMOS NIC3 | F160W | 160nm (H-band) | 171,200s | 150.0 |
| NICMOS NIC3 | F222M | 222mm (K-band) | 105,000s | 102.0 |
| STIS | 50CCD | 350–950nm | 155,600s | 67.0 |
| STIS | F28X50LP | 550–960nm | 49,800s | 64.0 |
| STIS | MIRFUV | 150–170nm | 52,100s | 25.0 |
| STIS | MIRNUV | 160–320nm | 22,600s | 12.0 |
| Spectroscopy | G430M | 302.2–356.6nm | 57,100s | 61.0 |
| Spectroscopy | G140L | 115–173nm | 18,500s | 8.0 |
| Spectroscopy | E230M | 227.8–312nm | 151,100s | 69.0 |
Question:
what is the filter when the wavelength is 222mm (k-band)?
Answer:
F222M