#include <stdio.h>
#include <stdlib.h>
#include <math.h>

inline double f0(int value) {
    return tan((double)value + 12.28);
}

inline double f1(int value) {
    return (double)value - 7.92;
}

inline double f2(int value) {
    return sqrt(pow((double)value, 4) + 3.32);
}

int main(int argc, char *argv[])
{
    const int ROWS = 2;
    unsigned int K;
    scanf_s("%u", &K);

    // Allocate memory and make each R[i, j]
    int **R;
    R = (int**)malloc(ROWS * sizeof *R);
    for(int i = 0; i < ROWS; ++i) {
        R[i] = (int*)malloc(K * sizeof *R[i]);
        for(int j = 0; j < K; ++j) {
            scanf_s("%d", &R[i][j]);
        }
    }

    // Allocate S array to store results
    double* S = (double*)malloc(sizeof(double) * K);

    // Create array for functions pointers
    double (*functions[])(int) = { f0, f1, f2 };

    // Iterate over R to set elements of S
    for (int m = 0; m < K; ++m) {
        int value = R[0][m];
        int passValue = R[1][m];

        switch (value) {
        case 0:
            S[m] = functions[0](passValue);
            break;
        case 1:
            S[m] = functions[1](passValue);
            break;
        case 2:
            S[m] = functions[2](passValue);
            break;
        default:
            S[m] = R[1][m];
            break;
        }
    }

    // Print results to the user
    for (int i = 0; i < K; ++i) {
        printf("S[%d] = %f\n", i, S[i]);
    }

    // Free memory
    for(int i = 0; i < ROWS; ++i) {
        free(R[i]);
    }
    free(R);
    free(S);

    return 0;
}