text: import React from 'react';
  import { View, StyleSheet, Text } from 'react-native';
  import Screen from './Screen';
  import Pad from './Pad';
  
  
  export default class Calculator extends React.Component {
  
    render = () => {
      return (
        <View style={s.cntr}>
          <Screen style={s.screen} />
          <Pad style={s.pad} />
        </View>
      );
    }
  
  }
  
  const s = StyleSheet.create({
    cntr: {
      flex: 1
    },
    screen: {
      flex: 1
    },
    pad: {
      flex: 1,
    }
  })
  