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#include "../test.h"
bool allowednextmove(size_t n, const uint8_t [n]);
static char *moves[] = {
"U", "U2", "U'",
"D", "D2", "D'",
"R", "R2", "R'",
"L", "L2", "L'",
"F", "F2", "F'",
"B", "B2", "B'",
};
void run(void) {
char movestr[STRLENMAX];
uint8_t m[100];
int n, i, j;
fgets(movestr, STRLENMAX, stdin);
n = atoi(movestr);
for (i = 0; i < n; i++) {
fgets(movestr, STRLENMAX, stdin);
movestr[strcspn(movestr, "\n")] = 0;
for (j = 0; j < 18; j++)
if (!strcmp(movestr, moves[j]))
m[i] = j;
}
fprintf(stderr, "Last two: %s, %s\nNext: %s\n",
n > 2 ? moves[m[n-3]] : "-",
n > 1 ? moves[m[n-2]] : "-",
n > 0 ? moves[m[n-1]] : "-");
printf("%s\n", allowednextmove(n, m) ? "true" : "false");
}
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