// you can also use imports, for example:
// import java.util.*;

// you can write to stdout for debugging purposes, e.g.
// System.out.println("this is a debug message");

class Solution {
    public int solution(int X, int Y, int D) {
        // write your code in Java SE 8
    }
}

// you can write to stdout for debugging purposes, e.g.
// printf("this is a debug message\n");

int solution(int X, int Y, int D) {
    // write your code in C99 (gcc 6.2.0)
}

// you can write to stdout for debugging purposes, e.g.
// printf("this is a debug message\n");

int solution(int X, int Y, int D) {
    // write your code in C99 (gcc 6.2.0)
    
    
}

// you can write to stdout for debugging purposes, e.g.
// printf("this is a debug message\n");

int solution(int X, int Y, int D) {
    // write your code in C99 (gcc 6.2.0)
    
    int 
}

// you can write to stdout for debugging purposes, e.g.
// printf("this is a debug message\n");

int solution(int X, int Y, int D) {
    // write your code in C99 (gcc 6.2.0)
    
    int quo;
    
    quo = Y
}

// you can write to stdout for debugging purposes, e.g.
// printf("this is a debug message\n");

int solution(int X, int Y, int D) {
    // write your code in C99 (gcc 6.2.0)
    
    int quo;
    
    quo = Y/D;
}

// you can write to stdout for debugging purposes, e.g.
// printf("this is a debug message\n");

int solution(int X, int Y, int D) {
    // write your code in C99 (gcc 6.2.0)
    
    int quo,;
    
    quo = Y/D;
}

// you can write to stdout for debugging purposes, e.g.
// printf("this is a debug message\n");

int solution(int X, int Y, int D) {
    // write your code in C99 (gcc 6.2.0)
    
    int quo, rem;
    
    quo = Y/D;
    rem = Y%D;
}

// you can write to stdout for debugging purposes, e.g.
// printf("this is a debug message\n");

int solution(int X, int Y, int D) {
    // write your code in C99 (gcc 6.2.0)
    
    int quo, rem;
    
    quo = Y/D;
    rem = Y%D;
    
    
}

// you can write to stdout for debugging purposes, e.g.
// printf("this is a debug message\n");

int solution(int X, int Y, int D) {
    // write your code in C99 (gcc 6.2.0)
    
    int quo, rem;
    
    
    quo = Y/D;
    rem = Y%D;
    
    
}

// you can write to stdout for debugging purposes, e.g.
// printf("this is a debug message\n");

int solution(int X, int Y, int D) {
    // write your code in C99 (gcc 6.2.0)
    
    int quo, rem;
    
    Y -= X;
    quo = Y/D;
    rem = Y%D;
    
    
}

// you can write to stdout for debugging purposes, e.g.
// printf("this is a debug message\n");

int solution(int X, int Y, int D) {
    // write your code in C99 (gcc 6.2.0)
    
    int quo, rem;
    
    Y -= X;
    quo = Y/D;
    rem = Y%D;
    
    if(rem == 0)
        return quo;
    else
        return quo
}

// you can write to stdout for debugging purposes, e.g.
// printf("this is a debug message\n");

int solution(int X, int Y, int D) {
    // write your code in C99 (gcc 6.2.0)
    
    int quo, rem;
    
    Y -= X;
    quo = Y/D;
    rem = Y%D;
    
    if(rem == 0)
        return quo;
    else
        return quo+1;
}

// you can write to stdout for debugging purposes, e.g.
// printf("this is a debug message\n");

int solution(int X, int Y, int D) {
    // write your code in C99 (gcc 6.2.0)
    
    int quo, rem;
    
    Y -= X;
    quo = Y/D;
    rem = Y%D;
    
    if(rem == 0)
        return quo;
    else
        return quo+1;
}

// you can write to stdout for debugging purposes, e.g.
// printf("this is a debug message\n");

int solution(int X, int Y, int D) {
    // write your code in C99 (gcc 6.2.0)
    
    int quo, rem;
    
    Y -= X;
    quo = Y/D;
    rem = Y%D;
    
    if(rem == 0)
        return quo;
    else
        return quo+1;
}