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#include <stdio.h>#define MAXIN 1000int validNumber(int a);main(){        char *fgets(char *s, const MAXIN, FILE *stream);        char b;        int a;        b = fgets();        a = atoi(b);        printf(" %d\n", validNumber(a));        return 0;}int validNumber(int a){        if (a < 1 || a > 9) return 0; return 1;}