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Calender.java
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Calender.java
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import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.StringTokenizer;
public class Calender {
public static void main(String[] args) throws Exception {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
StringBuilder sb = new StringBuilder();
StringTokenizer st;
int T = Integer.parseInt(br.readLine()); // testCase
for(int testCase = 0; testCase < T; testCase++) {
st = new StringTokenizer(br.readLine(), " ");
int M = Integer.parseInt(st.nextToken()); // endX
int N = Integer.parseInt(st.nextToken()); // endY
int x = Integer.parseInt(st.nextToken()); // targetX
int y = Integer.parseInt(st.nextToken()); // targetY
sb.append(getDate(M, N, x-1, y-1)).append("\n");
}
System.out.println(sb);
}
private static int getDate(int M, int N, int x, int y) {
for(int index = x; index < N * M; index += M) {
if(index % N == y) {
return index + 1;
}
}
return -1;
}
}