/* package whatever; // don't place package name! */
import java.util.*;
import java.lang.*;
import java.io.*;
class multidimention_array {
public static void main
(String args
[]) {
int arr[][] = new int[3][];
arr[0] = new int[1];
arr[1] = new int[2];
arr[2] = new int[3];
int sum = 0;
for (int i = 0; i < 3; ++i)
for (int j = 0; j < i + 1; ++j)
arr[i][j] = j + 1;
for (int i = 0; i < 3; ++i)
for (int j = 0; j < i + 1; ++j)
sum += arr[i][j];
}
}
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