// yukicoder: No.182 新規性の虜
// 2019.4.13 bal4u

#include <stdio.h>

#if 1
#define gc() getchar_unlocked()
#define pc(c) putchar_unlocked(c)
#else
#define gc() getchar()
#define pc(c) putchar(c)
#endif

int main()
{
	int c;
	pc('1'), pc(' ');
	while ((c = gc()) >= '0') pc(c);
	pc('\n');
	return 0;
}