{"MZXW6Y", "TBZZ"},
			{"MZXW6Y", "TB", "ZZ"},
			{"MZXW6", "YTBZZ"},
			{"MZXW6", "YTB", "ZZ"},
			{"MZXW6", "YT", "BZZ"},
		}, io.ErrUnexpectedEOF},

		// Normal case, this is valid input
		{"fooba", [][]string{
			{"MZXW6YTB"},
			{"MZXW6YT", "B"},
			{"MZXW6Y", "TB"},
			{"MZXW6", "YTB"},
			{"MZXW6", "YT", "B"},
			{"MZXW", "6YTB"},
			{"MZXW", "6Y", "TB"},
		}, nil},
	}