// yukicoder: No.406 鴨等間隔の法則
// 2019.4.16 bal4u

#include <stdio.h>

//// 高速入力
#if 1
#define gc() getchar_unlocked()
#define pc(c) putchar_unlocked(c)
#else
#define gc() getchar()
#define pc(c) putchar(c)
#endif
int in()    // 非負整数の入力
{
	int n = 0, c = gc();
	do n = 10 * n + (c & 0xf), c = gc(); while (c >= '0');
	return n;
}

char s[20];

int main()
{
	int m, A;
	char *p;

	m = in();
	while (m--) {
		A = in(), p = s;
		while (A) {
			*p++ = (A & 1) ? 'L' : 'R';
			A--, A >>= 1;
		}
		while (--p >= s) pc(*p);
		pc('\n');
	}
	return 0;
}