Print position of an array

The intent of this program would be to print the position linha and coluna where the largest value in the array is located, can someone tell me why the result is printing 0x0 and if there is another more effective way ? In my test of course, the biggest value you entered was not the first.

#include<stdio.h>
#include<stdlib.h>

int matriz[3][3],i,j,maior=0,i1,j1;

main(){
    for(i=0;i<3;i++){
        for(j=0;j<3;j++){
            printf("Digite um valor: ");
            scanf("%d",&maior);
            if(matriz[i][j]>maior){
                maior=matriz[i][j];
                i1=i;
                j1=j;
            }//fim if
        }//fim for j
    }//fim for i
    printf("%d x %d \n",i1,j1);
    system("pause");
}//fim do main