for (int i=0; i<=6; i++) cin>>a[i];

a[0]:=-1; a[1]:=2; a[2]:=-1; a[3]:=2; a[4]:=-1; a[5]:=9; a[6]:=-10;

іnt a [7] ={ 31, 28, 31, 30, 31, 29, 32, 43};

cin>>a[0]>>a[1]>>a[2]>>a[3]>>a[4]>>a[5];

cout>>a[0]>>a[1]>>a[2]>>a[3]>>a[4]>>a[5]>>a[6];