#include <stdio.h>
#include <string.h>
 
int main() {
    // 暗号化された文字列
    char encrypted[] = "NMKHMD";
    int shift = 33;  // シフト量
    char decrypted[sizeof(encrypted)];  // 復号化後の文字列を格納する配列
 
    // 暗号化文字列を一文字ずつ復号化
    for (int i = 0; i < strlen(encrypted); i++) {
        decrypted[i] = encrypted[i] + shift;
    }
    decrypted[strlen(encrypted)] = '\0';  // 文字列の終端にNULL文字を追加
 
    printf("暗号化前の文字列は: %s\n", decrypted);
 
    return 0;
}
 

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