#include<stdio.h>
#include<stdlib.h>
/* gets WA, but I don't know why */
int main(void) {
int tests;
long first_age, first_position, second_age, second_position, positions_between;
for(int i = 0; i < tests; i++) {
scanf("%li %li %li %li", &first_age
, &first_position
, &second_age
, &second_position
); positions_between
= abs(second_position
- first_position
) - 1; printf("%li ", positions_between
); if(positions_between % 3 == 0) {
} else {
}
}
}
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