#include <stdio.h>
int main(void) {
int i;
for (i = 1; i <= 20; i++) {
if (i % 15 == 0) {
} else if (i % 3 == 0) {
} else if (i % 5 == 0) {
} else {
}
}
for (i = 1; i <= 20; i++) {
(i
% 5) && (i
% 3) && printf("%d", i
); }
return 0;
}
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