```python
import tensorflow as tf

```


```python
a=tf.Variable([1,2,3,4,5])
```


```python
b=tf.Variable([3,4,5,6,7])
```


```python

```


```python
c=tf.add(a,b)

```


```python
z=tf.Variable([[1,2,3,4,5]])
```


```python
d=tf.Variable([[1],[2],[3],[4],[5]])
```


```python
e=tf.matmul(z,d)
```


```python
# sess = tf.Session()

config = tf.ConfigProto()
config.gpu_options.per_process_gpu_memory_fraction = 0.2
sess = tf.Session(config=config)
```


```python
init = tf.global_variables_initializer()
sess.run(init)
```


```python
sess.run(c)
```


```python
sess.run(e)
```


```python

```