//uva10718 #include<stdio.h> int main() { unsigned int N, L, U; while(scanf("%d%d%d",&N, &L, &U) == 3) { int i; unsigned int power, M = 0; for(i = 31; i >= 0; i--) { power = 1 << i; if(power > U) continue; if(N & power && power > L) continue; if(L < power) L = 0; else L -= power; U -= power; M |= power; } printf("%u\n", M); } return 0; }