\[\boxed{\mathbf{105.}}\]
\[126 + 1 = 127\]
\[252 + 1 = 253\]
\[490 + 1 = 491\]
\[563 + 1 = 564\]
\[707 + 1 = 708\]
\[680 + 1 = 681\]
\[199 + 1 = 200\]
\[219 + 1 = 220\]
\[999 + 1 = 1000\]