whats wrong with my coding? someone plis..

/* let say i have a file named word.txt contains 100 words*/
#include<stdio.h>
#include <stdlib.h>
 struct list			//structure function
{
	char word[20];	
};

int main()
{
	struct list n1[100];
	char grid[15][15];
	
	FILE*inp,                      //pointer for input file of encryption.
		*outp;                     //pointer for  output file for encryption.
		 
	int k=0,j=0,i=0,m=0;

	/*  Open file and read the matric number and the name list  */
	inp=fopen("word.txt","r"); 	
	outp=fopen("grib.txt","w");	

	  if (inp == NULL)   //if input is nothing
	  {
              printf("Error opening input file.  \n");
	  }
          else
	  {
              for(k=0;k<100;k++)	
              {
                  fscanf(inp," %s",n1[k].word);                  
                  for(i=0;i<15;i++)	
                  {
                      for(j=0;j<15;j++)				
                      {
                          grid[i][j]=n1[k].word[m];
                          m++; 
                          if(n1[k].word[m]== '\0')
                              break;
                      }
                      m=0; 
                      break;    
                 }
            }
            for(i=0;i<15;i++)	
            {
                for(j;j<15;j++)					
                {
                    grid[i][j]=rand();  
                }
            }
            for(i=0;i<15;i++)	
            {
                for(j=0;j<15;j++)					
                {
                    fprintf (outp,"%s\t\t\t",  grid[i][j]);  
                }
                fprintf (outp,"\n\n\n");  
            }
        }
        system("pause");
        return 0;
    }