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Divisibility of numbers

Given a range [l; r] you are asked to print the divisibility for each number in that range (l and r including). For each number, you are asked to print a sequence of + and - signs.
For the number 4, the output should look like ++-+, which means that 4 is divisible by 1 (first +), it is also divisible by 2 (second +), not divisible by 3 (the -), and is divisible by itself (the last +).
The input contains 2 numbers the l and r of that range (l ≤ r).
The output should contain as many rows as there are numbers in that range. Each row should start with the number it refers to, followed by a sequence of + and - signs.

2 ++
3 +-+
4 ++-+
5 +---+
6 +++--+
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