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