Supply all the missing prepositions in the sentence.
He is a kind person and always helps others need.
He is a kind person and always helps others in need.
Complete the following task based on the instruction and optional input provided.### Instruction:
Supply all the missing prepositions in the sentence.

### Input:
He is a kind person and always helps others need.

### Output:
He is a kind person and always helps others in need.