Please rewrite this sentence removing any redundant words or phrases.
It is necessary for students to go to school five days a week.
Students must attend school five days a week.
Complete the following task based on the instruction and optional input provided.### Instruction:
Please rewrite this sentence removing any redundant words or phrases.

### Input:
It is necessary for students to go to school five days a week.

### Output:
Students must attend school five days a week.