/2 *3+1
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#define _CRT_SECURE_NO_WARNINGS
#include <ctype.h>
#include <math.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main(void) {
bool f = true;
int a = 81;
scanf("%d", &a);
while (a != 1) {
printf(f ? "%d" : "-%d", a);
if (a % 2 == 0) {
a /= 2;
} else {
a = a * 3 + 1;
}
f = false;
}
printf("-%d\n", a);
return 0;
}
C
INFO