Write a program in c to accept characters in an array and print the design.If user inputs a string "012", then the output must be as follows

I want print the pattern and I have looked for many tutorials but didn't found anything like this.There are many patterns available but I don't know how to use the array characters for the same.

the pattern I want to print is:

012210
01  10
0    0
01  10
012210

Here is my program for this pattern:

#include <stdio.h>
int main()
{
    int i, j, n;
    scanf("%d", &n);
    // upper half of the pattern
    for(i = 0; i < n; i++) 
    {
        for(j = 0; j < (2 * n); j++)
        { 
            if(i + j <= n - 1)  // upper left triangle
                printf("%d",j);
            else
                printf(" ");
            if((i + n) <= j)  // upper right triangle
                printf("%d",j);
            else
                printf(" ");
        }
        printf("\n");
    }
    // bottom half of the pattern
    for(i = 0; i < n; i++)
    {
        for(j = 0; j < (2 * n); j++)
        {
            if(i >= j)  //bottom left triangle
                printf("%d",j);
            else
                printf(" ");
            if(i >= (2 * n - 1) - j)  // bottom right triangle
                printf("%d",j);
            else
                printf(" ");
        }
        printf("\n");
    }
    return 0;
}

As in the question, I want the user to input in an array and according to the values the the array,the pattern is formed.Please help me on this.Thanks in advance!