Problem:
Score : 700 points

Problem Statement

There is a circle with a circumference of L.
Each point on the circumference has a coordinate value, which represents the arc length from a certain reference point clockwise to the point.
On this circumference, there are N ants.
These ants are numbered 1 through N in order of increasing coordinate, and ant i is at coordinate X_i.

The N ants have just started walking.
For each ant i, you are given the initial direction W_i. Ant i is initially walking clockwise if W_i is 1; counterclockwise if W_i is 2.
Every ant walks at a constant speed of 1 per second.
Sometimes, two ants bump into each other.
Each of these two ants will then turn around and start walking in the opposite direction.

For each ant, find its position after T seconds.

Constraints

All input values are integers.

1 \leq N \leq 10^5

1 \leq L \leq 10^9

1 \leq T \leq 10^9

0 \leq X_1 < X_2 < ... < X_N \leq L - 1

1 \leq W_i \leq 2

Input

The input is given from Standard Input in the following format:

N L T
X_1 W_1
X_2 W_2
:
X_N W_N

Output

Print N lines.
The i-th line should contain the coordinate of ant i after T seconds. Here, each coordinate must be between 0 and L-1, inclusive.

Sample Input 1

3 8 3
0 1
3 2
6 1

Sample Output 1

1
3
0

1.5 seconds after the ants start walking, ant 1 and 2 bump into each other at coordinate 1.5.
1 second after that, ant 1 and 3 bump into each other at coordinate 0.5.
0.5 seconds after that, that is, 3 seconds after the ants start walking, ants 1, 2 and 3 are at coordinates 1, 3 and 0, respectively.

Sample Input 2

4 20 9
7 2
9 1
12 1
18 1

Sample Output 2

7
18
18
1

Solution in C (GCC 5.4.1) (judge verdict: Wrong Answer)

#include <stdio.h>

  /* 配列の要素を交換する */
void Swap(long long int x[ ], long long int i, long long int j)
{
    int temp;

    temp = x[i];
    x[i] = x[j];
    x[j] = temp;
}


void QSort(long long int x[ ], long long int left, long long int right)
{
    int i, j;
    int pivot;

    i = left;                      /* ソートする配列の一番小さい要素の添字 */
    j = right;                     /* ソートする配列の一番大きい要素の添字 */

    pivot = x[(left + right) / 2]; /* 基準値を配列の中央付近にとる */

    while (1) {                    /* 無限ループ */

        while (x[i] < pivot)       /* pivot より大きい値が */
            i++;                   /* 出るまで i を増加させる */

        while (pivot < x[j])       /* pivot より小さい値が */
            j--;                   /*  出るまで j を減少させる */
        if (i >= j)                /* i >= j なら */
            break;                 /* 無限ループから抜ける */

        Swap(x, i, j);             /* x[i] と x[j]を交換 */
        i++;                       /* 次のデータ */
        j--;
    }

    if (left < i - 1)              /* 基準値の左に 2 以上要素があれば */
        QSort(x, left, i - 1);     /* 左の配列を Q ソートする */
    if (j + 1 <  right)            /* 基準値の右に 2 以上要素があれば */
        QSort(x, j + 1, right);    /* 右の配列を Q ソートする */
}




int main(void)
{
	int n,i;
	int pos = 0;
	long long int x[100001];
	int w[100001];
	long long int l,t;
	
	scanf("%d %lld %lld", &n, &l, &t);
	
	for (i = 0; i < n; i++){
		scanf("%lld %d", &x[i], &w[i]);
		if (w[i] == 1){
			x[i] += t;
			if (x[i] > (l - 1)) {
				x[i] = x[i] - l;
				pos++;
			}
		} else{
			x[i] -= t;
			if (x[i] < 0){
				x[i] = l + x[i];
				pos--;
			}
		}
	}
	
	QSort(x, 0 , n-1);
	
	if (pos < 0) pos = 0;
	else if (pos >= n) pos -= n;
	
	for (i = pos; i < n; i++){
		printf("%lld\n", x[i]);
	}
	for (i = 0; i < pos; i++){
		printf("%lld\n", x[i]);
	}
	
	return 0;
}