POJ 1663 Number Steps

#include <iostream>
#include <cstdio>
#include <cstring>
#define REP(i, s, n) for(int i = s; i <= n; i ++)
#define REP_(i, s, n) for(int i = n; i >= s; i --)

using namespace std;

int main(){
    int T; scanf("%d", &T);
    while(T --){
        int x, y; scanf("%d%d", &x, &y);
        if(x == y){
            if(x % 2 == 1) printf("%d\n", x / 2 * 4 + 1);
            else printf("%d\n", x * 2);
        }
        else if(x - y == 2){
            if(y % 2 == 1) printf("%d\n", (y / 2) * 4 + 3);
            else printf("%d\n", (y / 2) * 4 + 2);
        }
        else printf("No Number\n");
    }
    return 0;
}