Round an unsigned integer to the nearest multiple of 10, with (a) rounding up, (b) down, (c) to even multiple of 10.

Analyze the round an unsigned integer to the nearest multiple of 10, with (a) rounding up, (b) down, (c) to even multiple of 10..

Examples
Input: "test_input_1"
Output: "output_1"
Hints

Round an unsigned integer to the nearest multiple of 10, with (a) rounding up, (b) down, (c) to even multiple of 10.

Analyze the round an unsigned integer to the nearest multiple of 10, with (a) rounding up, (b) down, (c) to even multiple of 10..