#include #include void main(void) { char tf[] = "TF"; short t; scanf("%hd", &t); short *x = malloc(sizeof(short)*t); for (short i = 0; i < t; i++) scanf("%hd", &x[i]); short p = 0; short xorf = 0; for (short i = 0; i < t; i++) { if (!(p == x[i] + 1 || p == x[i] - 1)) xorf = 1; p = x[i]; } printf("%c\n", tf[xorf]); }