C program to print X pattern

#include<stdio.h>
#include<string.h>
int main()
{
  int i,j;
  char a[50];
  scanf("%s",a);
  int t=strlen(a)-1;     //set right side diagonal start value
  for(i=0;i<strlen(a);i++)
  {
     for(j=0;j<strlen(a);j++)
     {
          if(i==j&&j==t){
               printf("%c",a[i]);--t;   // to print mid value
                }
          else if (i==j){
               printf("%c",a[i]);   // to print left to right diagonal
                  }
        else if(j==t&&j!=i){
               printf("%c",a[t]);--t;} // to print right to left diagonal
        else
               printf(" ");          // to print spaces between spaces
    }
 printf("\n");    //   to print on new line
 }
 return 0;
 }

OUTPUT :