View Code of Problem 69

#include<stdio.h>

int main()
{
    int x, y;
    while(scanf("%d", &x)!=EOF){
    if(x<1){
        printf("%d\n", x);
    } else if(x>=1 && x<10){
        printf("%d\n", 2*x-1);
    } else {
        printf("%d\n", 3*x-11);
    }
}
    return 0;
}