#include <stdio.h>
int a=3, b=7, x;
int main() {
scanf("%d", &x);
if( (x>a)&&(x<b) ) {
printf("%d sta in (%d,%d)\n", x,a,b);
} else {
printf("%d non sta in (%d,%d)\n", x,a,b);
}
if(x<=a) {
printf("%d sta in (-inf,%d]\n", x,a);
} else {
printf("%d non sta in (-inf,%d]\n", x,a);
}
if(x>=b) {
printf("%d sta in [%d,+inf)\n", x,b);
} else {
printf("%d non sta in [%d,+inf)\n", x,b);
}
}
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