#include <stdio.h>

int main(void) {
    int N[10];
    int num;
    int idx = 0;
    int minVal;
    int minIdx;

    printf("数値を入力:\n");
    scanf("%d", &num);

    while (idx < 10 && num != -1) {
        N[idx] = num;
        scanf("%d", &num);
        idx++;
    }

    num = idx;

   
    minVal = 9999;
    minIdx = -1;

    
    for (idx = 0; idx < num; idx++) {
        if (minVal > N[idx]) {
            minVal = N[idx];
            minIdx = idx;
        }
    }
	if (minIdx != -1) {
        printf("%d番目\n", minIdx + 1);
    }

    return 0;
}