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

int cmpChar (const void* x, const void* y) { return (int)(*(char*)x > *(char*)y) ? 1 : (int)(*(char*)x < *(char*)y) ? - 1: 0; }

int cmpInt (const void* x, const void* y) { return *(int*)x > *(int*)y ? 1 : *(int*)x < *(int*)y ? -1 : 0; }

int cmpDouble (const void* x, const void* y) { return *(double*)x == *(double*)y ? 0 : (*(double*)x > *(double*)y ? 1 : -1); }

int universalMax(void* arr, int length, int size, int (*func)(const void*, const void*))
{
    int max = 0;
    for (int i = 1; i < length; i++) max = func((arr + i * size), (arr + max * size)) > 0 ? i : max;
    return max;
}

int main ()
{
    int com;
    char* scan;
    scanf("%d ", &com);
    void* array = malloc(20 * com);
    int (*f)(const void*, const void*);
    switch (com)
    {
        case 1:;
            scan = "%c ";
            f = &cmpChar;
            break;
        case 4:;
            scan = "%d ";
            f = &cmpInt;
            break;
        case 8:;
            scan = "%lf ";
            f = &cmpDouble;
            break;
    }
    for (int i = 0; i < 20; i++) scanf(scan, array + i * com);
    printf("%d\n", universalMax(array, 20, com, f));
    return 0;
}