#include<stdio.h>
 
int diwaliContest(int N, int P) {
    int totalMinutes = 4 * 60; // Total minutes in 4 hours
    int travelTime = P; // Time taken to travel to the party
    int timeLeft = totalMinutes - travelTime; // Time left after travel
    int solvedProblems = 0;
    int timeNeeded = 0;
 
    for (int i = 1; i <= N; i++) {
        timeNeeded += 5 * i; // Time needed to solve problem i
        if (timeNeeded <= timeLeft) {
            solvedProblems++;
        } else {
            break; // Stop checking further problems if not enough time
        }
    }
 
    return solvedProblems;
}
 
int main() {
    int N, P;
    printf("Enter the total number of problems: ");
    scanf("%d", &N);
    printf("Enter the time to travel (in minutes): ");
    scanf("%d", &P);
 
    int result = diwaliContest(N, P);
    printf("Max can solve %d problems and reach the party venue within the given time frame.\n", result);
 
    return 0;
}
 

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