Making 2 dimentional arry in c

#include<stdio.h>

int main()

{

int n_students = 2;

int n_subjects = 6;

int i,j;

int markes[2][6];

for(i=0; i<n_students ; i++){

for(j=0; j<n_subjects ;j++){

printf("Enter the markes of students %d in subject %d \n",i+1,j+1);

scanf("%d", &markes[i][j]);

}

}

for(i=0; i<n_students ; i++){

for(j=0; j<n_subjects ;j++){

printf("The markes of students %d in subject %d is: %d\n",i+1,j+1,markes[i][j]);

}

}

return 0;

}