Adding Numbers with One's Complement Method

Example №1: Adding the $6$-bit numbers $-6_{10} = 111001_2$ and $13_{10} = 001101_2$:

End-around carry:
|
v
1 11  1  <-- Carry Bits
  001101
+ 111001
  ______
  000110
+      1 <-- Adding the end-around carry
  ______
  000111 <-- What is this equal to in base 10?