signed int __cdecl check(const char *input)
{
  signed int v2; // [esp+1Ch] [ebp-1Ch]
  unsigned int i; // [esp+20h] [ebp-18h]
  unsigned int j; // [esp+24h] [ebp-14h]
  size_t len; // [esp+28h] [ebp-10h]

  v2 = 0;
  len = strlen(input);
  if ( len <= 4 || !(len & 1) )                 // длина > 4 и нечетная
    v2 = 1;
  if ( *input != '^' || input[len >> 1] != '_' || input[len - 1] != '^' )// [0] = [end] = '^'
                                                // [mid] = '_'
    v2 = 1;
  for ( i = 1; len >> 1 > i; ++i )
  {
    if ( input[i] <= ' ' || input[i] > '/' )    // ' ' < {[1]..[mid]} <= '/'
      v2 = 1;
  }
  for ( j = (len >> 1) + 1; len - 1 > j; ++j )  // '/' < {[mid]..[end]} <= '9'
  {
    if ( input[j] <= '/' || input[j] > '9' )
      v2 = 1;
  }
  return v2;                                    // подходит '^/_9^'
}