#include <stdio.h>

int main(void)
{
    int i,num,index;
    const int date[]={7,9,3,5,2,9,3,6,5,8};
    for(;;){
        printf("整数1-9を入力\n");
        scanf("%d", &num);
        index = -1;
        for(i=0;i<10;i++){
            if(num == date[i]){
                index = i;
                printf("%dと一致した添え字の位置は%d番目\n", num, index);
            }
        }
        if(index == -1) printf("一致しない\n");

        printf("\n");
    }
    return 0;
}