#include int readint() { int x = 0; char ch = getchar_unlocked(); while ('0' <= ch && ch <= '9') { x = x * 10 + int(ch - '0'); ch = getchar_unlocked(); } return x; } char buf[32]; void writeint(int x) { // ensure that x >= 1 int pos = 0; while (x != 0) { buf[pos++] = x % 10 + '0'; x /= 10; } while (pos != 0) { putchar_unlocked(buf[--pos]); } } int N, LIMIT, A[10240], cnt[10240], divpos[10240], divsep[10240], divs[94208]; bool canuse[10240]; int main() { // step #1. read input N = readint(); for (int i = 0; i < N; i++) { A[i] = readint(); if (LIMIT < A[i]) { LIMIT = A[i]; } } // step #2. pre-calculation for (int i = 1; i < N; i++) { cnt[A[i]]++; } for (int i = 1; i <= LIMIT; i++) { for (int j = i; j <= LIMIT; j += i) { divsep[j + 2]++; } } for (int i = 1; i <= LIMIT; i++) { divsep[i + 2] += divsep[i + 1]; } for (int i = 1; i <= LIMIT; i++) { for (int j = i; j <= LIMIT; j += i) { divs[divsep[j + 1]++] = i; } } // step #3. calculate and output the answer from the leftmost element int preval = A[0]; for (int i = 1; i < N; i++) { canuse[A[i]] = true; } writeint(A[0]); while (true) { int optval = -1, optlcm = (1 << 30); for (int i = divsep[preval]; i < divsep[preval + 1]; i++) { int x = divs[i]; while (divpos[x] <= LIMIT && !canuse[divpos[x]]) { divpos[x] += x; } if (divpos[x] <= LIMIT) { int curlcm = preval / x * divpos[x]; if (optlcm > curlcm) { optlcm = curlcm; optval = divpos[x]; } } } if (optval == -1) { break; } for (int i = 0; i < cnt[optval]; i++) { putchar_unlocked(' '); writeint(optval); } canuse[optval] = false; preval = optval; } putchar_unlocked('\n'); return 0; }