March 1, 1999 Zakharova appealed to the registry office

On March 1, 1999, Zakharova applied to the registry office with a request to register the birth of Irina’s daughter and issue a certificate. Irina Zakharova asked her father to indicate Zinchenko, with whom she had been in actual marital relations since 1993. In support of the fact that Zinchenko is the father of her child, Zakharova submitted several letters and a radiogram of Zinchenko, who had been swimming for four months, to the registry office. In letters, he inquired about her state of health, asked when a child was expected, offered various options for the name. In a radiogram, Zinchenko congratulated Zakharova on the birth of her daughter, and said that he hoped to be home by May 1, 1999.
Solve the problem.