#include <stdio.h>
 
#define TOTAL     20
 
int main(void)
{
    float ws[TOTAL] = {0.0f};
    size_t count = 0;
    size_t sz_ar = sizeof(ws) / sizeof(*ws);
 
    while(count < sz_ar && scanf("%f", &ws[count]) == 1)
        count++;
 
    int pos;
 
    for (int i = 0; i < count; ++i) {
        pos = i;
 
        for (int j = i + 1; j < count; ++j) {
            if (ws[pos] > ws[j]) {
                pos = j;
            }
        }
 
        if (pos != i) {
            float var_tmp = ws[i];
            ws[i] = ws[pos];
            ws[pos] = var_tmp;
        }
    }
 
    for (int i = 0; i < count; ++i) {
        printf("%.2f ", ws[i]);
    }
 
    return 0;
}

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0.4 6.7 1.2 -5.8 3.3 21.0 4.35