#D8666. Change Making

    ID: 7202 Type: Default 1000ms 268MiB

Change Making

Change Making

You want to make change for n n cents. Assuming that you have infinite supply of coins of 1, 5, 10 and / or 25 cents coins respectively, find the minimum number of coins you need.

Constraints

  • 1 len le109 1 \ le n \ le 10 ^ 9

Input

n n

The integer n n is given in a line.

output

Print the minimum number of coins you need in a line.

Examples

Input

100

Output

4

Input

54321

Output

2175

inputFormat

Input

n n

The integer n n is given in a line.

outputFormat

output

Print the minimum number of coins you need in a line.

Examples

Input

100

Output

4

Input

54321

Output

2175

样例

100
4