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856天前import java.util.Scanner; |
public class Main { |
public static void main(String[] args) { |
Scanner scan = new Scanner(System.in); |
|
int num = scan.nextInt(); |
int sum = 0; |
for( int i = 0; i < num; i++) |
{ |
int n = scan.nextInt(); |
int w = scan.nextInt(); |
sum += w; |
} |
System.out.println(sum); |
scan.close(); |
} |
} |
interface CalInterface |
{ |
int getweight(); |
} |
class TV implements CalInterface |
{ |
int weight; |
public TV (int a) |
{ |
weight = a; |
} |
public int getweight() |
{ |
return weight; |
} |
} |
class WashMachine implements CalInterface |
{ |
int weight; |
public WashMachine (int a) |
{ |
weight = a; |
} |
public int getweight() |
{ |
return weight; |
} |
} |
class Airconditioner implements CalInterface |
{ |
int weight; |
public Airconditioner (int a) |
{ |
weight = a; |
} |
public int getweight() |
{ |
return weight; |
} |
} |
class Truck |
{ |
|
} |
