#include <stdio.h>

int main () {
  int t = 0;
  long long a = 0LL;
  long long b = 0LL;
  long long c = 0LL;
  long long k = 0LL;
  
  int res = 0;
  
  res = scanf("%d", &t);
  while (t > 0) {
    res = scanf("%lld", &a);
    res = scanf("%lld", &b);
    res = scanf("%lld", &c);
    res = scanf("%lld", &k);
    while (k > 0LL && (a%2LL != b%2LL || b%2LL != c%2LL)) {
      long long na = (b+c)/2LL;
      long long nb = (c+a)/2LL;
      long long nc = (a+b)/2LL;
      a = na;
      b = nb;
      c = nc;
      k -= 1LL;
    }
    printf("%lld\n", a+b+c);
    t--;
  }
  
  return 0;
}