#include <stdio.h> #define STANDARD 42 int main(void) { int remain[STANDARD] = {0, }; int num, temp, count = 0; for (int i = 0; i < STANDARD; i++) { remain[i] = -1; } for (int i = 0; i < 10; i++) { scanf("%d", &num); temp = num % STANDARD; for (int j = 0; j < STANDARD; j++) { if (remain[j] == -1) { remain[j] = temp; j = STANDARD; } else if (remain[j] == temp) { j = STANDARD; } } } for (int i = 0; i < STANDARD; i++) { if(remain[i] != -1) { count++; } else break; } printf("%d", count); return 0; }