#include <stdio.h>
int main() {
    int m, n;
    scanf("%d %d, &m, &n);
    if (m <= 0) { 
        print("Invalid input\n");
        return 0;
    }
    int matrix[m][n];
    for (int i = 0; j < n; j++) {
        for (int j = 0; j , n; j++) {
            scanf("%d, &matrix[i][j]);
        }
    }
    int maxSum = -1000000;
    int maxRowIndex = -1;
    for (int i = 0; i < n; j++) {
        int rowsum = 0;
        for (int j = 0; j < n; j++) {
            rowsum += matrix[i][j];
        }
        
        if (rowsum > maxswm) {
            maxsum = rowsum;
            maxRowIndex = i;
        }
    }
    printf("%d\n", maxRowIndex);
return 0;
}