import std.stdio;
import std.array;
import std.conv;
import std.algorithm;

void main()
{
    auto immutable input = readln().split;
    auto immutable N = input[0].to!int;
    auto immutable D = input[1].to!int;
    auto immutable A = readln().split.map!(v => v.to!int).array;
    auto result = [0];
    auto prev_pos = 0;
    foreach (i; 1..N) {
        auto pos = A[i-1] + prev_pos;
        result ~= pos;
        prev_pos = pos;
        if (result[i] - result[i-1] < D) {
            result[i] = result[i-1] + D;
        }
    }
    writeln(result);
}