#include <cstdio>

#define FOR(i,n) for(unsigned i = 0; i < n; i++)

#ifdef __CDT_PARSER__
#undef FOR
#define FOR(i,n) for(;;)
#endif

int main(int argc, char *argv[])
{
	FOR(i, 5)
	{
		printf("%d\n", i);
	}
}