for t in range(int(input())):
    print(input().strip('0').count('0'))

fun main() {
    val t = readLine()!!.toInt()
    for (tc in 1..t) {
        val (n, g, b) = readLine()!!.split(' ').map { it.toLong() }
        
        val needG = (n + 1) / 2
        var totalG = needG / g * (b + g)
        totalG += if (needG % g == 0L) -b else needG % g
        println(maxOf(n, totalG))
    }
}

#include <bits/stdc++.h>

from math import log2
    print(res)

#include<bits/stdc++.h>
}

#include <bits/stdc++.h>
}

#include<bits/stdc++.h>
}

#include<bits/stdc++.h>
}

#include<bits/stdc++.h>
}