func_code_string: #include <bits/stdc++.h>   using namespace std;   long long cas;   long long a;   long long b;   long long c;   long long d[] = {0, 1, -1};   int main() {     scanf( %lld , &cas);     while (cas--) {       scanf( %lld %lld %lld , &a, &b, &c);       long long ans = 21413524368453;       for (long long i = 0; i < 3; ++i) {         long long aa = a + i;         for (long long j = 0; j < 3; ++j) {           long long bb = b + j;           for (long long k = 0; k < 3; ++k) {             long long cc = c + k;             ans = min(ans, abs(aa - bb) + abs(aa - cc) + abs(bb - cc));           }         }       }       printf( %lld n , ans);     }     return 0;   }   