#include <stdio.h>
int test(int x) {
int i = 0;
while (x) {
i = i * 10 + x % 10;
x /= 10;
continue;
}
return i;
}
int main(void) {
printf("%d %d %d\n", test
(8505), test
(1000), test
(123)); return 0;
}
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