#/***********************************************************
#    nim.c -- 三山くずし
#***********************************************************/

a = []

for i in 1..3
    printf("%d 番の山の石の数? ", i);  a[i] = gets.to_i
    if (a[i] <= 0); exit 1; end
end
my_turn = 0
while ((my_turn ^= 1) > -1) 
    max = 0
    for i in 1..3
        printf(" %d ", i)
        for j in 1..a[i]; printf("*"); end
        printf("\n")
        if (a[i] > max) 
            max = a[i];  imax = i
        end
    end
    if (max == 0); break; end
    if (my_turn == 1) 
        printf("私の番です.\n")
        x = a[1] ^ a[2] ^ a[3];  # 排他的論理和 
        j = 0
        for i in 1..3
            if (a[i] > (a[i] ^ x)); j = i; end
        end
        if (j != 0); a[j] ^= x; else; a[j] ^= x; end
    else 
        begin 
            printf("何番の山からとりますか? ")
            i = gets.to_i
        end while ( i < 1 || i > 3 || a[i] == 0)
        begin 
            printf("何個とりますか? ")
            n = gets.to_i
        end while ( n <= 0 || n > a[i])
        a[i] -= n
    end
end
if (my_turn == 1); printf("あなたの勝ちです!\n")
else;         printf("私の勝ちです!\n")
end

exit 0