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:
| System | Band | Uplink (MHz) | Downlink (MHz) | Channel number |
| --- | --- | --- | --- | --- |
| T-GSM-380 | 380.0 | 380.2–389.8 | 390.2–399.8 | dynamic |
| T-GSM-410 | 410.0 | 410.2–419.8 | 420.2–429.8 | dynamic |
| GSM-450 | 450.0 | 450.6–457.6 | 460.6–467.6 | 259–293 |
| GSM-480 | 480.0 | 479.0–486.0 | 489.0–496.0 | 306–340 |
| GSM-710 | 710.0 | 698.2–716.2 | 728.2–746.2 | dynamic |
| GSM-750 | 750.0 | 747.2–762.2 | 777.2–792.2 | 438–511 |
| T-GSM-810 | 810.0 | 806.2–821.2 | 851.2–866.2 | dynamic |
| GSM-850 | 850.0 | 824.2–849.2 | 869.2–894.2 | 128–251 |
| P-GSM-900 | 900.0 | 890.0–915.0 | 935.0–960.0 | 1–124 |
| E-GSM-900 | 900.0 | 880.0–915.0 | 925.0–960.0 | 975–1023, 0-124 |
| R-GSM-900 | 900.0 | 876.0–915.0 | 921.0–960.0 | 955–1023, 0-124 |
| T-GSM-900 | 900.0 | 870.4–876.0 | 915.4–921.0 | dynamic^ |
| DCS-1800 | 1800.0 | 1,710.2–1,784.8 | 1,805.2–1,879.8 | 512–885 |
| PCS-1900 | 1900.0 | 1,850.2–1,909.8 | 1,930.2–1,989.8 | 512–810 |
Question:
What band is the highest and has a System of gsm-450?
Answer:
450.0